First battle of Bull Run - wikipedia First battle of Bull Run This is the latest accepted revision, reviewed on 20 October 2018. First Battle of Bull Run First Battle of Manassas Part of the American Civil War First Battle of Bull Run. Chromolithograph by Kurz & Allison, 1889 Date July 21, 1861 ( 1861 - 07 - 21 ) Location Fairfax County and Prince William County, Virginia 38 ° 48 ′ 53 '' N 77 ° 31 ′ 22 '' W ﻿ / ﻿ 38.8147 ° N 77.5227 ° W ﻿ / 38.8147 ; - 77.5227 Coordinates : 38 ° 48 ′ 53 '' N 77 ° 31 ′ 22 '' W ﻿ / ﻿ 38.8147 ° N 77.5227 ° W ﻿ / 38.8147 ; - 77.5227 Result Decisive Confederate victory Belligerents United States ( Union ) Confederate States ( Confederacy ) Commanders and leaders Political leaders : Abraham Lincoln Military commanders : Winfield Scott Irvin McDowell Robert Patterson Political leaders : Jefferson Davis Military commanders : P.G.T. Beauregard Thomas `` Stonewall '' Jackson ( WIA ) Joseph E. Johnston Units involved Department of Northeastern Virginia : Army of Northeastern Virginia Department of Pennsylvania : Patterson 's Command ( not engaged ) Army of the Potomac Army of the Shenandoah Strength Army of Northeastern Virginia : 35,732 ( c. 18,000 engaged ) Patterson 's Command : 14 -- 18,000 ( not engaged ) 32,000 -- 34,000 ( c. 18,000 engaged ) Casualties and losses 2,708 ( 481 killed ; 1,011 wounded ; 1,216 missing ) 1,982 ( 387 killed ; 1,582 wounded ; 13 missing ) Manassas Campaign Fairfax Court House ( June 1861 ) Arlington Mills Vienna, Virginia Hoke 's Run Blackburn 's Ford 1st Bull Run Virginia ( 1861 ) Northeastern Virginia ( 1861 ) The First Battle of Bull Run ( the name used by Union forces ), also known as the First Battle of Manassas ( the name used by Confederate forces ), was fought on July 21, 1861 in Prince William County, Virginia, just north of the city of Manassas and about 25 miles west - southwest of Washington, D.C. It was the first major battle of the American Civil War. The Union 's forces were slow in positioning themselves, allowing Confederate reinforcements time to arrive by rail. Each side had about 18,000 poorly trained and poorly led troops in their first battle. It was a Confederate victory, followed by a disorganized retreat of the Union forces. Just months after the start of the war at Fort Sumter, the Northern public clamored for a march against the Confederate capital of Richmond, Virginia, which was expected to bring an early end to the rebellion. Yielding to political pressure, Brig. Gen. Irvin McDowell led his unseasoned Union Army across Bull Run against the equally inexperienced Confederate Army of Brig. Gen. P.G.T. Beauregard camped near Manassas Junction. McDowell 's ambitious plan for a surprise flank attack on the Confederate left was poorly executed by his officers and men ; nevertheless, the Confederates, who had been planning to attack the Union left flank, found themselves at an initial disadvantage. Confederate reinforcements under Brig. Gen. Joseph E. Johnston arrived from the Shenandoah Valley by railroad, and the course of the battle quickly changed. A brigade of Virginians under the relatively unknown brigadier general from the Virginia Military Institute, Thomas J. Jackson, stood its ground, which resulted in Jackson receiving his famous nickname, `` Stonewall ''. The Confederates launched a strong counterattack, and as the Union troops began withdrawing under fire, many panicked and the retreat turned into a rout. McDowell 's men frantically ran without order in the direction of Washington, D.C. Both armies were sobered by the fierce fighting and many casualties, and realized that the war was going to be much longer and bloodier than either had anticipated. The Battle of First Bull Run highlighted many of the problems and deficiencies that were typical of the first year of the war. Units were committed piecemeal, attacks were frontal, infantry failed to protect exposed artillery, tactical intelligence was nil, and neither commander was able to employ his whole force effectively. McDowell, with 35,000 men, was only able to commit about 18,000, and the combined Confederate forces, with about 32,000 men, committed only 18,000. Contents 1 Background 1.1 Military and political situation 1.2 Irvin McDowell 1.3 Intelligence 1.4 McDowell 's plan and initial movements in the Manassas Campaign 1.5 Prelude to battle 2 Opposing forces 2.1 Union 2.2 Confederate 3 Battle 3.1 Morning phase 3.1. 1 Matthews Hill 3.2 Noon phase 3.2. 1 Henry House Hill 3.3 Union retreat 4 Aftermath 4.1 Brief observations 4.2 Detailed casualties 4.2. 1 Union 4.2. 2 Confederate 4.3 Effect on the Union and subsequent events 4.4 Effect on the Confederacy 4.5 Confederate victory : turning point of the American Civil War 4.6 `` Bull Run '' vs. `` Manassas '' 4.7 Confusion between the battle flags 4.8 Conclusions 5 Additional battle maps 5.1 Gallery : the First Bull Run hour by hour 6 In popular culture 7 Sesquicentennial 8 Battlefield preservation 9 See also 10 Notes 11 References 11.1 Memoirs and primary sources 12 Further reading 13 External links Background Military and political situation Main article : Manassas Campaign Further information : Origins of the American Civil War ; Battle of Fort Sumter ; Western Virginia Campaign ; Border states ( American Civil War ) ; President Lincoln 's 75,000 volunteers ; Eastern Theater of the American Civil War ; and American Civil War Opposing political leaders Pres. Abraham Lincoln, USA Pres. Jefferson Davis, CSA Northern Virginia Theater in July 1861 Confederate Union Further map details, see : Additional Map 1 and Additional Map 2. On April 15, 1861, the day after South Carolina military forces attacked and captured Fort Sumter in Charleston Harbor, President Abraham Lincoln issued a proclamation declaring an insurrection against the laws of the United States. Earlier, South Carolina and seven other Southern states had declared their secession from the Union and formed the Confederate States of America. To suppress the rebellion and restore Federal law in the Southern states, Lincoln called for 75,000 volunteers with ninety - day enlistments to augment the existing U.S. Army of about 15,000. He later accepted an additional 40,000 volunteers with three - year enlistments and increased the strength of the U.S. Army to almost 20,000. Lincoln 's actions caused four more Southern states, including Virginia, to secede and join the Confederacy, and by 1 June the Confederate capital had been moved from Montgomery, Alabama, to Richmond, Virginia. In Washington, D.C., as thousands of volunteers rushed to defend the capital, General in Chief Lt. Gen. Winfield Scott laid out his strategy to subdue the rebellious states. He proposed that an army of 80,000 men be organized and sail down the Mississippi River and capture New Orleans. While the Army `` strangled '' the Confederacy in the west, the U.S. Navy would blockade Southern ports along the eastern and Gulf coasts. The press ridiculed what they dubbed as Scott 's `` Anaconda Plan ''. Instead, many believed the capture of the Confederate capital at Richmond, only one hundred miles south of Washington, would quickly end the war. By July 1861 thousands of volunteers were camped in and around Washington. Since General Scott was seventy - five years old and physically unable to lead this force, the administration searched for a more suitable field commander. Lt. Gen. Winfield Scott, General in Chief, USA Cartoon map illustrating Gen. Winfield Scott 's plan to crush the Confederacy, economically. It is sometimes called the `` Anaconda plan ''. Irvin McDowell Secretary of the Treasury Salmon P. Chase championed fellow Ohioan, 42 - year - old Maj. Irvin McDowell. Although McDowell was a West Point graduate, his command experience was limited. In fact, he had spent most of his career engaged in various staff duties in the Adjutant General 's Office. While stationed in Washington he had become acquainted with Chase, a former Ohio governor and senator. Now, through Chase 's influence, McDowell was promoted three grades to brigadier general in the Regular Army and on 27 May was assigned command ( by President Abraham Lincoln ) of the Department of Northeastern Virginia, which included the military forces in and around Washington ( Army of Northeastern Virginia ). McDowell immediately began organizing what became known as the Army of Northeastern Virginia, 35,000 men arranged in five divisions. Under public and political pressure to begin offensive operations, McDowell was given very little time to train the newly inducted troops. Units were instructed in the maneuvering of regiments, but they received little or no training at the brigade or division level. He was reassured by President Lincoln, `` You are green, it is true, but they are green also ; you are all green alike. '' Against his better judgment, McDowell commenced campaigning. Intelligence During the previous year, U.S. Army captain Thomas Jordan set up a pro-Southern spy network in Washington City, including Rose O'Neal Greenhow, a prominent socialite with a wide range of contacts. He provided her with a code for messages. After he left to join the Confederate Army, he gave her control of his network but continued to receive reports from her. On July 9 and 16, 1861, Greenhow passed secret messages to Confederate General P.G.T. Beauregard containing critical information regarding military movements for what would be the First Battle of Bull Run, including the plans of Union general McDowell. McDowell 's plan and initial movements in the Manassas Campaign On July 16, 1861, McDowell departed Washington with the largest field army yet gathered on the North American continent, about 35,000 men ( 28,452 effectives ). McDowell 's plan was to move westward in three columns and make a diversionary attack on the Confederate line at Bull Run with two columns, while the third column moved around the Confederates ' right flank to the south, cutting the railroad to Richmond and threatening the rear of the Confederate army. He assumed that the Confederates would be forced to abandon Manassas Junction and fall back to the Rappahannock River, the next defensible line in Virginia, which would relieve some of the pressure on the U.S. capital. McDowell had hoped to have his army at Centreville by 17 July, but the troops, unaccustomed to marching, moved in starts and stops. Along the route soldiers often broke ranks to wander off to pick apples or blackberries or to get water, regardless of the orders of their officers to remain in ranks. The Confederate Army of the Potomac ( 21,883 effectives ) under Beauregard was encamped near Manassas Junction, approximately 25 miles ( 40 km ) from the United States capital. McDowell planned to attack this numerically inferior enemy army. Union Maj. Gen. Robert Patterson 's 18,000 men engaged Johnston 's force ( the Army of the Shenandoah at 8,884 effectives, augmented by Maj. Gen. Theophilus H. Holmes 's brigade of 1,465 ) in the Shenandoah Valley, preventing them from reinforcing Beauregard. Movements July 16 -- 21, 1861 Situation July 18 Battlefield of Manassas After two days of marching slowly in the sweltering heat, the Union army was allowed to rest in Centreville. McDowell reduced the size of his army to approximately 31,000 by dispatching Brig. Gen. Theodore Runyon with 5,000 troops to protect the army 's rear. In the meantime, McDowell searched for a way to outflank Beauregard, who had drawn up his lines along Bull Run. On July 18, the Union commander sent a division under Brig. Gen. Daniel Tyler to pass on the Confederate right ( southeast ) flank. Tyler was drawn into a skirmish at Blackburn 's Ford over Bull Run and made no headway. Also on the morning of 18 July Johnston had received a telegram suggesting he go to Beauregard 's assistance if possible. Johnston marched out of Winchester about noon, while Stuart 's cavalry screened the movement from Patterson. Patterson was completely deceived. One hour after Johnston 's departure Patterson telegraphed Washington, `` I have succeeded, in accordance with the wishes of the General - in - Chief, in keeping General Johnston 's force at Winchester. '' For the maneuver to be successful McDowell felt he needed to act quickly. He had already begun to hear rumors that Johnston had slipped out of the valley and was headed for Manassas Junction. If the rumors were true, McDowell might soon be facing 34,000 Confederates, instead of 22,000. Another reason for quick action was McDowell 's concern that the ninety - day enlistments of many of his regiments were about to expire. `` In a few days I will lose many thousands of the best of this force '', he wrote Washington on the eve of battle. In fact, the next morning two units of McDowell 's command, their enlistments expiring that day, would turn a deaf ear to McDowell 's appeal to stay a few days longer. Instead, to the sounds of battle, they would march back to Washington to be mustered out of service. Becoming more frustrated, McDowell resolved to attack the Confederate left ( northwest ) flank instead. He planned to attack with Brig. Gen. Daniel Tyler 's division at the Stone Bridge on the Warrenton Turnpike and send the divisions of Brig. Gens. David Hunter and Samuel P. Heintzelman over Sudley Springs Ford. From here, these divisions could march into the Confederate rear. The brigade of Col. Israel B. Richardson ( Tyler 's Division ) would harass the enemy at Blackburn 's Ford, preventing them from thwarting the main attack. Patterson would tie down Johnston in the Shenandoah Valley so that reinforcements could not reach the area. Although McDowell had arrived at a theoretically sound plan, it had a number of flaws : it was one that required synchronized execution of troop movements and attacks, skills that had not been developed in the nascent army ; it relied on actions by Patterson that he had already failed to take ; finally, McDowell had delayed long enough that Johnston 's Valley force was able to board trains at Piedmont Station and rush to Manassas Junction to reinforce Beauregard 's men. Prelude to battle On July 19 -- 20, significant reinforcements bolstered the Confederate lines behind Bull Run. Johnston arrived with all of his army, except for the troops of Brig. Gen. Kirby Smith, who were still in transit. Most of the new arrivals were posted in the vicinity of Blackburn 's Ford, and Beauregard 's plan was to attack from there to the north toward Centreville. Johnston, the senior officer, approved the plan. If both of the armies had been able to execute their plans simultaneously, it would have resulted in a mutual counterclockwise movement as they attacked each other 's left flank. McDowell was getting contradictory information from his intelligence agents, so he called for the balloon Enterprise, which was being demonstrated by Prof. Thaddeus S.C. Lowe in Washington, to perform aerial reconnaissance. Opposing forces Union Further information : Union order of battle Key Union commanders Brig. Gen. Irvin McDowell, Army of Northeastern Virginia, ( Commanding ), USA Brig. Gen. Daniel Tyler, Army of Northeastern Virginia, ( 1st Div. ) USA Brig. Gen. David Hunter, Army of Northeastern Virginia, ( 2nd Div. ) USA Brig. Gen. Samuel P. Heintzelman, Army of Northeastern Virginia, ( 3rd Div. ) USA Brig. Gen. Theodore Runyon, Army of Northeastern Virginia, ( 4th Div. ) USA Brig. Gen. Dixon S. Miles, Army of Northeastern Virginia, ( 5th Div. ) USA Maj. Gen. Robert Patterson, Patterson 's Command, USA McDowell 's Army of Northeastern Virginia was organized into five infantry divisions of three to five brigades each. Each brigade contained three to five infantry regiments. An artillery battery was generally assigned to each brigade. The total number of Union troops present at the Battle of First Bull Run was about 35,000, although only about 18,000 were actually engaged. The Union army was organized as follows : 1st Division of Brig. Gen. Daniel Tyler the largest in the army, contained four brigades, led by Brig. Gen. Robert C. Schenck, Col. Erasmus Keyes, Col. William T. Sherman, and Col. Israel B. Richardson ; 2nd Division of Col. David Hunter of two brigades. These were led by Cols. Andrew Porter and Ambrose E. Burnside ; 3rd Division of Col. Samuel P. Heintzelman included 3 brigades, led by Cols. William B. Franklin, Orlando B. Willcox, and Oliver O. Howard ; 4th Division of Brig. Gen. Theodore Runyon without brigade organization and not engaged, contained seven regiments of New Jersey and one regiment of New York volunteer infantries ; 5th Division of Col. Dixon S. Miles included 2 brigades, commanded by Cols. Louis Blenker and Thomas A. Davies ; While McDowell organized the Army of Northeastern Virginia, a smaller Union command was organized and stationed northwest of Washington, near Harper 's Ferry. Commanded by Maj. Gen. Robert Patterson, 18,000 men of the Department of Pennsylvania protected against a Confederate incursion from the Shenandoah Valley. Abstract from the returns of the Department of Northeastern Virginia, commanded by Brigadier - General McDowell, U.S.A., for July 16 and 17, 1861. ARMY OF NORTHEASTERN VIRGINIA Commands Present For duty Total Aggregate Officers Men General staff 19 21 First ( Tyler 's ) Division 569 12,226 9,494 9,936 Second ( Hunter 's ) Division 121 2,364 2,525 2,648 Third ( Heintzelman 's ) Division 382 8,680 9,385 9,777 Fourth ( Runyon 's ) Division 247 5,201 5,502 5,752 Fifth ( Miles ' ) Division 289 5,884 5,917 6,207 Twenty - first New York Volunteers 37 684 707 745 Twenty - fifth New York Militia 39 519 534 573 Second United States Cavalry, Company E 56 63 73 Total 1,707 35,614 34,127 35,732 Abstract from return of the Department of Pennsylvania, commanded by Major - General Patterson, June 28, 1861. PATTERSON 'S COMMAND Commanding officer Troops Present for duty Infantry Cavalry Artillery Officers Men Officers Men Officers Men Bvt. Maj. Gen. Geo. Cadwalader First division 322 6,637 11 307 7 251 Maj. Gen. W.H. Keim Second division 322 6,410 74 Total 644 13,047 14 381 7 251 Aggregate present for duty Infantry 13,691 Cavalry 395 Artillery 258 Total 14,344 Confederate Further information : Confederate order of battle Key Confederate commanders Brig. Gen. P.G.T. Beauregard, CSA Army of the Potomac Brig. Gen. Joseph E. Johnston, CSA Army of the Shenandoah, ( Commanding ) Joseph E. Johnston 's forces was organized as follows : The Army of the Potomac ( Brig. Gen. P.G.T. Beauregard ) was organized into six infantry brigades, with each brigade containing three to six infantry regiments. Artillery batteries were assigned to various infantry brigades. The total number of troops in the Confederate Army of the Potomac was approximately 22,000. Beauregard 's army also contained thirty - nine pieces of field artillery and a regiment of Virginia cavalry. The Army of the Potomac was organized into seven infantry brigades. These were : 1st Brigade, under Brig. Gen. Milledge Luke Bonham ; 2nd Brigade, under Brig. Gen. Richard S. Ewell ; 3rd Brigade, under Brig. Gen. David R. Jones ; 4th Brigade, under Brig. Gen. James Longstreet ; 5th Brigade, under Col. Philip St. George Cocke ; 6th Brigade, under Col. Jubal Early ; 7th Brigade, under Col. Nathan G. Evans. Reserve Brigade, under Brig. Gen. Theophilus H. Holmes The Army of the Shenandoah ( Brig. Gen. Joseph E. Johnston ) was also organized into brigades. It consisted of four brigades of three to five infantry regiments each, which totaled approximately 12,000 men. Each brigade was assigned one artillery battery. In addition to the infantry, there were twenty pieces of artillery and about 300 Virginia cavalrymen under Col. J.E.B. Stuart. Although the combined strength of both Confederate armies was about 34,000, only about 18,000 were actually engaged at First Bull Run. The Army of the Shenandoah consisted of four infantry brigades : 1st Brigade, commanded by Brig. Gen. Thomas J. Jackson ; 2nd Brigade, commanded by Col. Francis S. Bartow ; 3rd Brigade, commanded by Brig. Gen. Barnard E. Bee ; 4th Brigade, commanded by Brig. Gen. Edmund Kirby Smith. Abstract front field return, First Corps ( Army of the Potomac ), July 21, 1861. ( Dated September 25, 1861. ) ARMY OF THE POTOMAC Commands. General and Staff Officers Infantry. Cavalry. Artillery. Officers Men. Officers Men. Officers Men. First Brigade 211 4,070 Second Brigade 133 2,307 Third Brigade 128 1,989 Fourth Brigade 160 2,364 Fifth Brigade 208 8,065 Sixth Brigade 261 2,356 Seventh Louisiana 44 773 Eighth Louisiana 43 803 Hampton Legion 27 627 Thirteenth Virginia 34 642 Harrison 's Battalion ( three companies ) 13 196 Troops ( ten ) of cavalry 38 545 Washington ( Louisiana ) Artillery 19 201 Kemper 's battery 76 Latham 's battery 86 Loudoun Battery 55 Shield 's battery 82 Camp Pickens ( heavy artillery ) 18 275 Total 22 1,215 18,354 85 1,383 51 775 Aggregates : Infantry 19,569 Cavalry 1,468 Artillery 826 21,863 Abstract from monthly report of Brig. Gen. Joseph E. Johnston 's division, or Army of the Shenandoah ( C.S.A. ), for June 30, 1861. ARMY OF THE SHENANDOAH Commanding officer. Troops. PRESENT FOR DUTY. Infantry. Cavalry. Artillery. Officers. Men. Officers. Men. Officers. Men. Colonel Jackson First brigade 128 2,043 81 Col. F.S. Bartow Second brigade 155 2,391 59 Brigadier - General Bee Third brigade 161 2,629 78 Col. A. Elzey Fourth brigade 156 2,106 45 Col. J.E.B. Stuart First Virginia Cavalry 21 313 Col. A.C. Cummings Virginia Volunteers 14 227 Total 614 9,396 21 313 15 263 Aggregate present for duty. General staff 32 Infantry 10,010 Cavalry 334 Artillery 278 10,654 Battle Morning phase Matthews Hill Situation morning, July 21 Situation at 05 : 30 -- 06 : 00 ( July 21, 1861 ) On the morning of July 21, 1861, McDowell sent the divisions of Hunter and Heintzelman ( about 12,000 men ) from Centreville at 2 : 30 a.m., marching southwest on the Warrenton Turnpike and then turning northwest toward Sudley Springs. Tyler 's division ( about 8,000 ) marched directly toward the Stone Bridge. The inexperienced units immediately developed logistical problems. Tyler 's division blocked the advance of the main flanking column on the turnpike. The later units found the approach roads to Sudley Springs were inadequate, little more than a cart path in some places, and did not begin fording Bull Run until 9 : 30 a.m. Tyler 's men reached the Stone Bridge around 6 a.m. At 5 : 15 a.m., Richardson 's brigade fired a few artillery rounds across Mitchell 's Ford on the Confederate right, some of which hit Beauregard 's headquarters in the Wilmer McLean house as he was eating breakfast, alerting him to the fact that his offensive battle plan had been preempted. Nevertheless, he ordered demonstration attacks north toward the Union left at Centreville. Bungled orders and poor communications prevented their execution. Although he intended for Brig. Gen. Richard S. Ewell to lead the attack, Ewell, at Union Mills Ford, was simply ordered to `` hold... in readiness to advance at a moment 's notice ''. Brig. Gen. D.R. Jones was supposed to attack in support of Ewell, but found himself moving forward alone. Holmes was also supposed to support, but received no orders at all. U.S. cavalry at Sudley Spring Ford An 1862 illustration of a Confederate officer forcing slaves to fire a cannon at U.S. forces at gunpoint. According to John Parker, a former slave, he was forced by his Confederate captors to fire a cannon at U.S. soldiers at the Battle of Bull Run. All that stood in the path of the 20,000 Union soldiers converging on the Confederate left flank were Col. Nathan `` Shanks '' Evans and his reduced brigade of 1,100 men. Evans had moved some of his men to intercept the direct threat from Tyler at the bridge, but he began to suspect that the weak attacks from the Union brigade of Brig. Gen. Robert C. Schenck were merely feints. He was informed of the main Union flanking movement through Sudley Springs by Captain Edward Porter Alexander, Beauregard 's signal officer, observing from 8 miles ( 13 km ) southwest on Signal Hill. In the first use of wig - wag semaphore signaling in combat, Alexander sent the message `` Look out for your left, your position is turned. '' Evans hastily led 900 of his men from their position fronting the Stone Bridge to a new location on the slopes of Matthews Hill, a low rise to the northwest of his previous position. The Confederate delaying action on Matthews Hill included a spoiling attack launched by Major Roberdeau Wheat 's 1st Louisiana Special Battalion, `` Wheat 's Tigers ''. After Wheat 's command was thrown back, and Wheat seriously wounded, Evans received reinforcement from two other brigades under Brig. Gen. Barnard Bee and Col. Francis S. Bartow, bringing the force on the flank to 2,800 men. They successfully slowed Hunter 's lead brigade ( Brig. Gen. Ambrose Burnside ) in its attempts to ford Bull Run and advance across Young 's Branch, at the northern end of Henry House Hill. One of Tyler 's brigade commanders, Col. William Tecumseh Sherman, crossed at an unguarded ford and struck the right flank of the Confederate defenders. This surprise attack, coupled with pressure from Burnside and Maj. George Sykes, collapsed the Confederate line shortly after 11 : 30 a.m., sending them in a disorderly retreat to Henry House Hill. ( Further map details, see : Additional Map 4, Additional Map 5, Additional Map 6 and Additional Map 7. ) Noon phase Henry House Hill As they retreated from their Matthews Hill position, the remainder of Evans 's, Bee 's, and Bartow 's commands received some cover from Capt. John D. Imboden and his battery of four 6 - pounder guns, who held off the Union advance while the Confederates attempted to regroup on Henry House Hill. They were met by generals Johnston and Beauregard, who had just arrived from Johnston 's headquarters at the M. Lewis Farm, `` Portici ''. Fortunately for the Confederates, McDowell did not press his advantage and attempt to seize the strategic ground immediately, choosing to bombard the hill with the batteries of Capts. James B. Ricketts ( Battery I, 1st U.S. Artillery ) and Charles Griffin ( Battery D, 5th U.S. ) from Dogan 's Ridge. Attacks on Henry House Hill, noon -- 2 p.m Union retreat, after 4 p.m. Brig. Gen Thomas J. Jackson 's Virginia Brigade came up in support of the disorganized Confederates around noon, accompanied by Col. Wade Hampton and his Hampton 's Legion, and Col. J.E.B. Stuart 's cavalry. The Hampton Legion, some 600 men strong, managed to buy Jackson time to construct a defensive line on Henry House Hill by firing repeated volleys at Sherman 's advancing brigade. Hampton had purchased about 400 British Enfield rifles to equip the men with, however it is not clear if his troops had them at Bull Run or if the weapons arrived after the battle. If so, they would have been the only foreign - made weapons on the field. The 79th New York was thoroughly decimated by Hampton 's musket fire and began to disintegrate. Wade Hampton gestured towards their colonel, James Cameron, and remarked `` Look at that brave officer trying to lead his men and they wo n't follow him. '' Shortly afterwards, Cameron, the brother of US Senator Simon Cameron, was fatally wounded. It has been claimed that Hampton deliberately targeted officers of the 79th New York in revenge for the death of his nephew earlier in the day, although he had in fact been killed by soldiers of the 69th New York. Jackson posted his five regiments on the reverse slope of the hill, where they were shielded from direct fire, and was able to assemble 13 guns for the defensive line, which he posted on the crest of the hill ; as the guns fired, their recoil moved them down the reverse slope, where they could be safely reloaded. Meanwhile, McDowell ordered the batteries of Ricketts and Griffin to move from Dogan 's Ridge to the hill for close infantry support. Their 11 guns engaged in a fierce artillery duel across 300 yards ( 270 m ) against Jackson 's 13. Unlike many engagements in the Civil War, here the Confederate artillery had an advantage. The Union pieces were now within range of the Confederate smoothbores and the predominantly rifled pieces on the Union side were not effective weapons at such close ranges, with many shots fired over the head of their targets. Ruins of Judith Henry 's house, `` Spring Hill '', after the battle Postwar house on site of Judith Henry house in Manassas Judith Henry grave One of the casualties of the artillery fire was Judith Carter Henry, an 85 - year - old widow and invalid, who was unable to leave her bedroom in the Henry House. As Ricketts began receiving rifle fire, he concluded that it was coming from the Henry House and turned his guns on the building. A shell that crashed through the bedroom wall tore off one of the widow 's feet and inflicted multiple injuries, from which she died later that day. `` The Enemy are driving us '', Bee exclaimed to Jackson. Jackson, a former U.S. Army officer and professor at the Virginia Military Institute, is said to have replied, `` Then, Sir, we will give them the bayonet. '' Bee exhorted his own troops to re-form by shouting, `` There is Jackson standing like a stone wall. Let us determine to die here, and we will conquer. Rally behind the Virginians. '' This exclamation was the source for Jackson 's ( and his brigade 's ) nickname, `` Stonewall ''. Bee was shot through the stomach shortly after speaking and died the next day, thus it is unclear exactly what he meant, moreover none of his subordinates wrote reports of the battle. Col. States Rights Gist, serving as Bee 's aide - de-camp, took command of the brigade. Major Burnett Rhett, chief of staff to General Johnston, claimed that Bee was angry at Jackson 's failure to come immediately to the relief of Bee 's and Bartow 's brigades while they were under heavy pressure. Those who subscribe to this opinion believe that Bee 's statement was meant to be pejorative : `` Look at Jackson standing there like a stone wall ! '' Artillery commander Griffin decided to move two of his guns to the southern end of his line, hoping to provide enfilade fire against the Confederates. At approximately 3 p.m., these guns were overrun by the 33rd Virginia, whose men were outfitted in blue uniforms, causing Griffin 's commander, Maj. William F. Barry, to mistake them for Union troops and to order Griffin not to fire on them. Close range volleys from the 33rd Virginia and Stuart 's cavalry attack against the flank of the 11th New York Volunteer Infantry Regiment ( Ellsworth 's Fire Zouaves ), which was supporting the battery, killed many of the gunners and scattered the infantry. Capitalizing on this success, Jackson ordered two regiments to charge Ricketts 's guns and they were captured as well. As additional Federal infantry engaged, the guns changed hands several times. Capture of Ricketts ' Battery, painting by Sidney E. King, National Park Service The capture of the Union guns turned the tide of battle. Although McDowell had brought 15 regiments into the fight on the hill, outnumbering the Confederates two to one, no more than two were ever engaged simultaneously. Jackson continued to press his attacks, telling soldiers of the 4th Virginia Infantry, `` Reserve your fire until they come within 50 yards ! Then fire and give them the bayonet ! And when you charge, yell like furies ! '' For the first time, Union troops heard the disturbing sound of the Rebel yell. At about 4 p.m., the last Union troops were pushed off Henry House Hill by a charge of two regiments from Col. Philip St. George Cocke 's brigade. To the west, Chinn Ridge had been occupied by Col. Oliver Otis Howard 's brigade from Heintzelman 's division. Also at 4 p.m., two Confederate brigades - Col. Jubal Early 's, which had moved from the Confederate right, and Brig. Gen. Edmund Kirby Smith 's ( commanded by Col. Arnold Elzey after Smith was wounded ), which had just arrived from the Shenandoah Valley -- crushed Howard 's brigade. Beauregard ordered his entire line forward. At 5 p.m. everywhere McDowell 's army was disintegrating. Thousands, in large and small groups or as individuals, began to leave the battlefield and head for Centreville. McDowell rode around the field trying to rally regiments and groups of soldiers, but most had had enough. Unable to stop the mass exodus, McDowell gave orders for Porter 's regular infantry battalion, near the intersection of the turnpike and Manassas - Sudley Road, to act as a rear guard as his army withdrew. The unit briefly held the crossroads, then retreated eastward with the rest of the army. McDowell 's force crumbled and began to retreat. ( Further map details, see : Additional Map 8, Additional Map 9, Additional Map 10, Additional Map 11 and Additional Map 12. ) Union retreat The retreat was relatively orderly up to the Bull Run crossings, but it was poorly managed by the Union officers. A Union wagon was overturned by artillery fire on a bridge spanning Cub Run Creek and incited panic in McDowell 's force. As the soldiers streamed uncontrollably toward Centreville, discarding their arms and equipment, McDowell ordered Col. Dixon S. Miles 's division to act as a rear guard, but it was impossible to rally the army short of Washington. In the disorder that followed, hundreds of Union troops were taken prisoner. Wagons and artillery were abandoned, including the 30 - pounder Parrott rifle, which had opened the battle with such fanfare. Expecting an easy Union victory, the wealthy elite of nearby Washington, including congressmen and their families, had come to picnic and watch the battle. When the Union army was driven back in a running disorder, the roads back to Washington were blocked by panicked civilians attempting to flee in their carriages. Since their combined army had been left highly disorganized as well, Beauregard and Johnston did not fully press their advantage, despite urging from Confederate President Jefferson Davis, who had arrived on the battlefield to see the Union soldiers retreating. An attempt by Johnston to intercept the Union troops from his right flank, using the brigades of Brig. Gens. Milledge L. Bonham and James Longstreet, was a failure. The two commanders squabbled with each other and when Bonham 's men received some artillery fire from the Union rear guard, and found that Richardson 's brigade blocked the road to Centreville, he called off the pursuit. In Washington President Lincoln and members of the cabinet waited for news of a Union victory. Instead, a telegram arrived stating `` General McDowell 's army in full retreat through Centreville. The day is lost. Save Washington and the remnants of this army. '' The tidings were happier in the Confederate capital. From the battlefield President Davis telegraphed Richmond, `` We have won a glorious but dear - bought victory. Night closed on the enemy in full flight and closely pursued. '' Aftermath Brief observations First Bull Run was a clash between relatively large, ill - trained bodies of recruits, led by inexperienced officers. Neither army commander was able to deploy his forces effectively ; although nearly 60,000 men were present at the battle, only 18,000 had actually been engaged. Although McDowell had been active on the battlefield, he had expended most of his energy maneuvering nearby regiments and brigades, instead of controlling and coordinating the movements of his army as a whole. Other factors contributed to McDowell 's defeat : Patterson 's failure to hold Johnston in the valley ; McDowell 's two - day delay at Centreville ; allowing Tyler 's division to lead the march on 21 July thus delaying the flanking divisions of Hunter and Heintzelman ; and the 2 1 / 2 - hour delay after the Union victory on Matthews ' Hill, which allowed the Confederates to bring up reinforcements and establish a defensive position on Henry Hill. On Henry Hill Beauregard had also limited his control to the regimental level, generally allowing the battle to continue on its own and only reacting to Union moves. Johnston 's decision to transport his infantry to the battlefield by rail played a major role in the Confederate victory. Although the trains were slow and a lack of sufficient cars did not allow the transport of large numbers of troops at one time, almost all of his army arrived in time to participate in the battle. After reaching Manassas Junction, Johnston had relinquished command of the battlefield to Beauregard, but his forwarding of reinforcements to the scene of fighting was decisive. Jackson and Bee 's brigades had done the largest share of fighting in the battle ; Jackson 's brigade had fought almost alone for four hours and sustained over 50 % casualties. Detailed casualties Bull Run was the largest and bloodiest battle in United States history up to that point. Union casualties were 460 killed, 1,124 wounded, and 1,312 missing or captured ; Confederate casualties were 387 killed, 1,582 wounded, and 13 missing. Among the Union dead was Col. James Cameron, brother of President Lincoln 's first Secretary of War, Simon Cameron. Among the Confederate casualties was Col. Francis S. Bartow, who was the first Confederate brigade commander to be killed in the Civil War. General Bee was mortally wounded and died the following day. Compared to later battles, casualties at First Bull Run had not been especially heavy. Both Union and Confederate killed, wounded, and missing were a little over one thousand seven hundred each. Two Confederate brigade commanders, Jackson and Edmund Kirby - Smith, were wounded in the battle. Jackson was shot in the hand, so he remained on the battlefield. No Union officers above the regimental level were killed ; two division commanders ( Samuel Heintzelman and David Hunter ), and one brigade commander ( Orlando Willcox ) were wounded. Union Union casualties at the battle of Bull Run, July 21, 1861. ARMY OF NORTHEASTERN VIRGINIA Troops Killed Wounded Missing Remarks Officers Enlisted Men Officers Enlisted Men Officers Enlisted Men General staff First Division, General TYLER : First Brigade, Colonel Keyes 19 46 5 149 Eighteen others slightly wounded. Second Brigade, General Schenck 16 15 15 Third Brigade, Colonel Sherman 117 15 193 13 240 Fourth Brigade, Colonel Richardson Not engaged. Guarding Blackburn 's Ford. Total, First Division 6 152 19 254 19 404 Second Division, Colonel HUNTER : First Brigade, Colonel Porter 83 9 139 9 236 Four surgeons missing. Second Brigade, Colonel Burnside 5 35 85 59 Five surgeons missing. Total Second Division 6 118 12 224 11 295 Third Division, Colonel HEINTZELMAN : Division headquarters. First Brigade, Colonel Franklin 68 13 183 22 Second Brigade, Colonel Willcox 70 11 161 186 Third Brigade, Colonel Howard 48 7 108 6 174 Total, Third Division 6 186 32 452 10 382 Fourth Division, General RUNYON In reserve on the Potomac. Fifth Division, Colonel MILES : First Brigade Colonel Blenker 6 16 94 Second Brigade, Colonel Davies Total, Fifth Division 6 17 95 Grand total 19 462 64 947 40 1,176 Union artillery lost in the battle of Bull Run, July 21, 1861. Batteries Commanders Guns lost Remarks Rifled Smooth Total First U.S. Artillery, Company G ( two 20 - pounder Parrotts, one 30 - pounder Parrott ). Lieutenant Edwards 20 - pounders saved First U.S. Artillery, Company I ( six 10 - pounder Parrots ) Captain Ricketts 6 6 None saved Second U.S. Artillery, Company D Captain Arnold None saved Second U.S. Artillery, Company E ( two 13 - pounder James, two 6 - pounders ( old ), two 12 - pounder howitzers ). Captain Carlisle Two 6 - pounders saved Fifth S. Artillery ( Company D ), ( two 10 - pounder Parrotts, two 6 - pounders ( old ), two 12 - pounder howitzers ). Captain Griffin 5 One 10 - pounder saved Rhode Island Battery ( six 13 - pounder James ) 5 5 One saved Total lost 17 8 25 Confederate Confederate casualties at the battle of Bull Run, July 21, 1861. Command Killed Wounded Missing Aggregate Officers Enlisted Men Officers Enlisted Men Officers Enlisted Men ARMY OF THE POTOMAC INFANTRY First Louisiana ( battalion ) 8 5 33 48 Seventh Louisiana 23 26 Thirteenth Mississippi 6 6 Seventeenth Mississippi 9 11 Eighteenth Mississippi 6 28 38 Fifth North Carolina Second South Carolina 5 6 37 48 Fourth South Carolina 10 9 70 6 96 Fifth South Carolina 23 26 Eighth South Carolina 5 20 28 Hampton Legion 19 100 121 First Virginia 6 6 Seventh Virginia 9 37 47 Eighth Virginia 6 23 30 Seventeenth Virginia Eighteenth Virginia 6 12 19 Nineteenth Virginia 6 Twenty - eighth Virginia 9 9 Forty - ninth Virginia 9 29 40 ARTILLERY Alexandria Light Artillery Latham 's Loudoun Washington ( La. ) CAVALRY Thirtieth Virginia 9 Hanover ARMY OF THE SHENANDOAH INFANTRY Fourth Alabama 36 6 151 Seventh Georgia 18 12 122 Eighth Georgia 38 6 153 First Maryland 5 Second Mississippi 21 79 Eleventh Mississippi 7 21 Sixth North Carolina 22 46 Third Tennessee Second Virginia 15 69 Fourth Virginia 30 100 Fifth Virginia 6 47 Tenth Virginia 6 10 Twenty - seventh Virginia 18 122 Thirty - third Virginia 44 101 Total First Corps 6 99 29 490 12 632 Total Second Corps 19 263 34 1,029 Grand total 25 362 63 1,519 12 632 Today will be known as BLACK MONDAY. We are utterly and disgracefully routed, beaten, whipped by secessionists. -- Union diarist George Templeton Strong If the war had turned out to be of short duration, Bull Run would have been a disaster for the Union. But if, as now seemed more plausible, a long and nasty war was inevitable, that battle had a curiously salutary effect for the Union side. It provided a wake - up call for those optimists -- like Seward or even Lincoln -- who had hoped for or counted on a quick result. -- David Detzer, Donnybrook Bull Run was a turning point in the American Civil War... in the sense that the battle struck with impelling force upon public opinion at home and abroad, upon Congress, and upon the Commander - in - chief. It framed new patterns of thought and led to far - reaching changes in the conduct of the war. The failure at Bull Run inspired a second Northern rising. Volunteering accelerated, 90 - day men reenlisted, states rushed fresh regiments forward in plenitude... As they realized victory would not come readily, a new mood fastened upon Northerners. An iron resolve entered the Northern soul... -- James A. Rawley, Turning Points of the Civil War Effect on the Union and subsequent events Union forces and civilians alike feared that Confederate forces would advance on Washington, D.C., with very little standing in their way. On July 24, Prof. Thaddeus S.C. Lowe ascended in the balloon Enterprise to observe the Confederates moving in and about Manassas Junction and Fairfax. He saw no evidence of massing Confederate forces, but was forced to land in Confederate territory. It was overnight before he was rescued and could report to headquarters. He reported that his observations `` restored confidence '' to the Union commanders. The Northern public was shocked at the unexpected defeat of their army when an easy victory had been widely anticipated. Both sides quickly came to realize the war would be longer and more brutal than they had imagined. On July 22 President Lincoln signed a bill that provided for the enlistment of another 500,000 men for up to three years of service. On July 25, eleven thousand Pennsylvanians who had earlier been rejected by the U.S. Secretary of War, Simon Cameron, for federal service in either Patterson 's or McDowell 's command arrived in Washington, D.C., and were finally accepted. Three months after First Bull Run Union forces suffered another, smaller defeat at the Battle of Ball 's Bluff, near Leesburg, Virginia. The perceived military incompetence at First Bull Run and Ball 's Bluff led to the establishment of the Joint Committee on the Conduct of the War, a congressional body created to investigate Northern military affairs. Concerning the Battle of First Bull Run, the committee listened to testimony from a variety of witnesses connected with McDowell 's army. Although the committee 's report concluded that the principal cause of defeat was Patterson 's failure to prevent Johnston from reinforcing Beauregard, Patterson 's enlistment had expired a few days after the battle, and he was no longer in the service. The Northern public clamored for another scapegoat, and McDowell bore the chief blame. On 25 July 1861, he was relieved of army command and replaced by Maj. Gen. George B. McClellan, who would soon be named general - in - chief of all the Union armies. McDowell was also present to bear significant blame for the defeat of Maj. Gen. John Pope 's Army of Virginia by Gen. Robert E. Lee 's Army of Northern Virginia thirteen months later, at the Second Battle of Bull Run. Effect on the Confederacy The reaction in the Confederacy was more muted. There was little public celebration as the Southerners realized that despite their victory, the greater battles that would inevitably come would mean greater losses for their side as well. Once the euphoria of victory had worn off, Jefferson Davis called for 400,000 additional volunteers. Beauregard was considered the Confederate hero of the battle and was promoted that day by C.S. President Davis to full general in the Confederate army. Stonewall Jackson, arguably the most important tactical contributor to the victory, received no special recognition, but would later achieve glory for his 1862 Valley Campaign. Privately, Davis credited Greenhow with ensuring Confederate victory. Jordan sent a telegram to Greenhow : `` Our President and our General direct me to thank you. We rely upon you for further information. The Confederacy owes you a debt. ( Signed ) JORDAN, Adjutant - General. '' The battle also had long - term psychological consequences. The decisive victory led to a degree of over-confidence on the part of Confederate forces, while prompting a determined organizational effort on the part of the Union. In hindsight commentators on both sides agreed that the one - sided outcome `` proved the greatest misfortune that would have befallen the Confederacy ''. Although modern historians generally agree with this interpretation, James M. McPherson has argued that the esprit de corps attained by Confederate troops on the heels of their victory, together with a new sense of insecurity felt by northern commanders, also gave the Confederacy a military edge in the following months. Confederate victory : turning point of the American Civil War Further information : Turning point of the American Civil War § Confederate victory in First Battle of Bull Run ( July 1861 ) `` Bull Run '' vs. `` Manassas '' The name of the battle has caused controversy since 1861. The Union Army frequently named battles after significant rivers and creeks that played a role in the fighting ; the Confederates generally used the names of nearby towns or farms. The U.S. National Park Service uses the Confederate name for its national battlefield park, but the Union name ( Bull Run ) also has widespread currency in popular literature. Confusion between the battle flags Battlefield confusion between the battle flags, especially the similarity of the Confederacy 's `` Stars and Bars '' and the Union 's `` Stars and Stripes '' when fluttering, led to the adoption of the Confederate Battle Flag, which eventually became the most popular symbol of the Confederacy and the South in general. Conclusions First Bull Run demonstrated that the war would not be won by one grand battle, and both sides began preparing for a long and bloody conflict. The battle also showed the need for adequately trained and experienced officers and men. One year later many of the same soldiers who had fought at First Bull Run, now combat veterans, would have an opportunity to test their skills on the same battlefield at the Second Battle of Bull Run / Manassas. Additional battle maps Gallery : the First Bull Run hour by hour Map 1 : Situation Mid-July 1861 Map 2 : Beauregard 's defensive situation ( Mid-July 1861 ) Map 3 : Situation at 05 : 30 - 06 : 00 ( July 21, 1861 ) Map 4 : Situation at 10 : 30 - 11 : 00 ( July 21, 1861 ) Map 5 : Situation at 11 : 00 - 11 : 30 ( July 21, 1861 ) Map 6 : Situation at 12 : 00 - 12 : 30 ( July 21, 1861 ) Map 7 : Situation at 13 : 00 ( July 21, 1861 ) Map 8 : Situation at 14 : 30 - 15 : 00 ( July 21, 1861 ) Map 9 : Situation at 15 : 00 ( July 21, 1861 ) Map 10 : Situation at 15 : 30 ( July 21, 1861 ) Map 11 : Situation at 16 : 00 ( July 21, 1861 ) Map 12 : Situation at 16 : 30 - 17 : 30 ( July 21, 1861 ) In popular culture This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. ( July 2018 ) The First Battle of Bull Run is mentioned in the novel Gods and Generals, but is depicted more fully in its film adaptation. The battle forms the climax of the film Class of ' 61. It also appears in the first episode of the second season of the mini-series North and South, in the second episode of the first season of the mini-series How the West Was Won and in the first episode of the mini-series The Blue and the Gray. Manassas ( 1999 ) is the first volume in the James Reasoner Civil War Series of historical novels. The battle is described in Rebel ( 1993 ), the first volume of Bernard Cornwell 's The Starbuck Chronicles series of historical novels. The battle is described from the viewpoint of a Union infantryman in Upton Sinclair 's novella Manassas, which also depicts the political turmoil leading up to the Civil War. The battle is also depicted in John Jakes 's The Titans, the fifth novel in The Kent Family Chronicles, a series that explores the fictional Confederate cavalry officer Gideon Kent. The battle is the subject of the Johnny Horton song, `` Battle of Bull Run ''. Shaman, second in the Cole family trilogy by Noah Gordon, includes an account of the battle. The battle is also depicted in the song `` Yankee Bayonet '' by indie - folk band The Decemberists. In Murder at 1600, Detective Harlan Regis ( Wesley Snipes ) has built a plan - relief of the battle which plays a certain role in the plot. Sesquicentennial The National Jubilee of Peace building at Grant and Lee avenues in Manassas, Virginia, is draped with the U.S. flag for the 150th anniversary commemoration, held on July 21, 2011, of the First Battle of Bull Run. Prince William County staged special events commemorating the 150th anniversary of the Civil War through 2011. Manassas was named the No. 1 tourist destination in the United States for 2011 by the American Bus Association for its efforts in highlighting the historical impact of the Civil War. The cornerstone of the commemoration event featured a reenactment of the battle on July 23 -- 24, 2011. Throughout the year, there were tours of the Manassas battlefield and other battlefields in the county and a number of related events and activities. The City of Manassas commemorated the 150th anniversary of the battle July 21 -- 24, 2011. Battlefield preservation Part of the site of the battle is now Manassas National Battlefield Park, which is designated as a National Battlefield Park. More than 900,000 people visit the battlefield each year ( in comparison, 22 million people visited nearby Washington, D.C. in 2016 ). As a historic area under the National Park Service, the park was administratively listed on the National Register of Historic Places on October 15, 1966. See also American Civil War portal Second Battle of Bull Run Armies in the American Civil War Troop engagements of the American Civil War, 1861 List of costliest American Civil War land battles Origins of the American Civil War Battle of Fort Sumter Manassas Campaign Manassas National Battlefield Park Bull Run Mountains Commemoration of the American Civil War on postage stamps Notes ^ Jump up to : National Park Service. Jump up ^ National Park Service Jump up ^ Further information : Official Records, Series I, Volume II pages 314 -- 315. ^ Jump up to : Further information : Official Records, Series I, Volume II pages 469 -- 470. ^ Jump up to : Further information : Abtract from returns of the Department of Northeastern Virginia, commanded by Brigadier - General McDowell, U.S.A., for July 16 and 17, 1861 ( Official Records, Series I, Volume II page 309 ). ^ Jump up to : Strength figures vary by source. Eicher, p. 87 - 88 : 35,000 Union, 32,000 Confederate ; Esposito, map 19 : 35,000 Union, 29,000 Confederate ; Ballard, 35,000 Union ( 18,000 engaged ), 34,000 Confederate ( 18,000 engaged ) ; Salmon, p. 20 : 28,450 Union, 32,230 Confederate ; Kennedy, p. 14 : 35,000 Union, 33,000 Confederate ; Livermore, p. 77 : 28,452 Union `` effectives '', 32,323 Confederate engaged. Writing in The Century Magazine, adjutant generals James B. Fry cites Archived May 9, 2008, at the Wayback Machine. 18,572 Union men ( including stragglers not on the field ) and 24 guns engaged, Thomas Jordan cites Archived August 29, 2009, at the Wayback Machine. 18,052 Confederate men and 37 guns engaged. ^ Jump up to : Further information : Official Records, Series I, Volume II page 187 and pages 568 -- 569. ^ Jump up to : Further information : Casualties at the battle of Bull Run, July 21, 1861. ( Official Records, Series I, Volume II page 327 ). Jump up ^ 2,896 ( 460 killed ; 1,124 wounded ; 1,312 captured / missing ), according to Eicher, p. 99. ^ Jump up to : Further information : Casualties in the Army of the Potomac ( Confederate ) July 21, 1861. ( Official Records, Series I, Volume II page 570 ). Jump up ^ Eicher, p. 99. Jump up ^ Ballard, page V ( Preface ). Jump up ^ Ballard, 3. Jump up ^ Ballard, 4. Jump up ^ Ballard, page 4. Jump up ^ Detzer, p. 77 ; Williams, p. 21 ; McPherson, p. 336 ; Davis, p. 110, attributes the remark to general - in - chief Winfield Scott. ^ Jump up to : Fishel, Edwin C., The Secret War For The Union : The Untold Story of Military Intelligence in the Civil War, Boston : Houghton Mifflin, 1996, pp. 59 -- 63 ^ Jump up to : `` Greenhow, Rose O'Neal '', ( 1817 -- 1864 ), The National Archives -- People Description. 1817 -- 1864, ( accessed February 5, 2013 ) Jump up ^ `` Letter Written in Cipher on Mourning Paper by Rose Greenhow '', National Archives and Records Administration, World Digital Library Jump up ^ Davis, pp. 110 -- 11. Jump up ^ Ballard, page 8. ^ Jump up to : Livermore, p. 77. Jump up ^ Ballard, page 9. Jump up ^ Ballard, page 10. Jump up ^ Eicher, pp. 91 -- 100. Jump up ^ Eicher, p. 92. Jump up ^ Further information : Official Records, Series I, Volume II page 187. Jump up ^ Beatie, pp. 285 -- 88 ; Esposito, text for Map 21 ; Rafuse, `` First Battle of Bull Run '', p. 312. Jump up ^ Eicher, p. 94 ; Esposito, Map 22. Jump up ^ Masur, Kate ( July 27, 2011 ). `` Slavery and Freedom at Bull Run ''. The New York Times. New York : The New York Times Company. Retrieved March 5, 2016. Jump up ^ Hall, Andy ( February 20, 2015 ). `` Memory : Frederick Douglass ' Black Confederate ''. Dead Confederates : A Civil War Blog. WordPress. Archived from the original on March 9, 2016. Retrieved March 5, 2016. ^ Jump up to : Rafuse, `` First Battle of Bull Run '', p. 312. Jump up ^ Brown, pp. 43 -- 45 ; Alexander, pp. 50 -- 51. Alexander recalls that the signal was `` You are flanked. '' Jump up ^ Rafuse, `` First Battle of Bull Run '', pp. 312 -- 13 ; Rafuse, A Single Grand Victory ``, p. 131 ; Esposito, Map 22 ; Eicher, pp. 94 -- 95. Jump up ^ Eicher, p. 95. Jump up ^ Rafuse, `` First Battle of Bull Run '', p. 313 ; Eicher, p. 96. Jump up ^ Salmon, p. 19. Jump up ^ Rafuse, `` First Battle of Bull Run '', p. 314. Jump up ^ Detzer, p. 357 ; Davis, pp. 204 -- 05. Jump up ^ Robertson, p. 264. Jump up ^ Freeman, vol. 1, p. 82 ; Robertson, p. 264. McPherson, p. 342, reports the quotation after `` stone wall '' as being `` Rally around the Virginians ! '' Jump up ^ See, for instance, McPherson, p. 342. There are additional controversies about what Bee said and whether he said anything at all. See Freeman, vol. 1, pp. 733 -- 34. Jump up ^ Eicher, pp. 96 -- 98 ; Esposito, Map 23 ; Rafuse, `` First Battle of Bull Run '', pp. 314 -- 15 ; McPherson, pp. 342 -- 44. Jump up ^ Rafuse, `` First Battle of Bull Run '', p. 315 ; Eicher, p. 98. Jump up ^ Ballard, page 32. Jump up ^ Rafuse, `` First Battle of Bull Run '', pp. 315 -- 16. Jump up ^ McPherson, p. 344 ; Eicher, p. 98 ; Esposito, Map 24. Jump up ^ Freeman, vol. 1, p. 76 ; Esposito, Map 24 ; Davis, p. 149. Jump up ^ Ballard, page 35. Jump up ^ Ballard, pages 35 -- 36. Jump up ^ Eicher, p. 99. Jump up ^ Detzer, pp. 434 -- 435. Jump up ^ Detzer, p. 383. ^ Jump up to : Ballard, page 36. Jump up ^ Further information : Official Records, Series I, Volume II page 328. Jump up ^ Eicher, p. 100. Jump up ^ Detzer, p. 488. Jump up ^ Rawley, pp. 56 -- 57. Jump up ^ Haydon, pp. 192 -- 93. Jump up ^ Rawley, p. 58. Jump up ^ Curtin, Andrew G. ( January 8, 1862 ). `` Message of Andrew G. Curtin, Governor of Pennsylvania, to the Legislature, ''. Executive Department : 8. Jump up ^ Eicher, pp. 100 -- 101. Jump up ^ Detzer, pp. 492 -- 93. Jump up ^ Freeman, vol. 1, p. 79. Jump up ^ Greenhow, Rose O'Neal, My Imprisonment and the First Year of Abolition Rule at Washington, London : Richard Bentley, 1863, p. 18, full text online at Documenting the American South, University of North Carolina Jump up ^ James M. McPherson ( 1988 ). The Battle Cry of Freedom : The Civil War Era. Oxford University Press. pp. 347 -- 350. ISBN 9780199743902. Jump up ^ McPherson, p. 346, n. 7. McPherson 's popular one - volume history of the war uses the two names interchangeably because he states that `` neither name has any intrinsic superiority over the other. '' Jump up ^ McPherson, p. 342. Jump up ^ `` Plan a trip and discover your story ''. visitpwc.com. Jump up ^ `` manassascivilwar.org ''. manassascivilwar.org. Archived from the original on May 5, 2011. Jump up ^ `` Washington, DC Facts ''. Destination DC. Retrieved 19 July 2018. Jump up ^ National Park Service ( 2009 - 03 - 13 ). `` National Register Information System ''. National Register of Historic Places. National Park Service. References Alexander, Edward P. Fighting for the Confederacy : The Personal Recollections of General Edward Porter Alexander. Edited by Gary W. Gallagher. Chapel Hill : University of North Carolina Press, 1989. ISBN 0 - 8078 - 4722 - 4. Ballard, Ted. First Battle of Bull Run : Staff Ride Guide. Washington, DC : United States Army Center of Military History, 2003. ISBN 978 - 0 - 16 - 068078 - 6. This article incorporates text from this source, which is in the public domain. Beatie, Russel H. Army of the Potomac : Birth of Command, November 1860 -- September 1861. New York : Da Capo Press, 2002. ISBN 0 - 306 - 81141 - 3. Brown, J. Willard. The Signal Corps, U.S.A. in the War of the Rebellion. U.S. Veteran Signal Corps Association, 1896. Reprinted 1974 by Arno Press. ISBN 0 - 405 - 06036 - X. Davis, William C., and the Editors of Time - Life Books. First Blood : Fort Sumter to Bull Run. Alexandria, VA : Time - Life Books, 1983. ISBN 0 - 8094 - 4704 - 5. Detzer, David. Donnybrook : The Battle of Bull Run, 1861. New York : Harcourt, 2004. ISBN 978 - 0 - 15 - 603143 - 1. Eicher, David J. The Longest Night : A Military History of the Civil War. New York : Simon & Schuster, 2001. ISBN 0 - 684 - 84944 - 5. Esposito, Vincent J. West Point Atlas of American Wars. New York : Frederick A. Praeger, 1959. OCLC 5890637. The collection of maps ( without explanatory text ) is available online at the West Point website. Praeger, 1959. Freeman, Douglas S. Lee 's Lieutenants : A Study in Command. 3 vols. New York : Scribner, 1946. ISBN 0 - 684 - 85979 - 3. Haydon, F. Stansbury. Military Ballooning during the Early Civil War. Baltimore : Johns Hopkins University Press, 1941. ISBN 0 - 8018 - 6442 - 9. Livermore, Thomas L. Numbers and Losses in the Civil War in America 1861 -- 65. Reprinted with errata, Dayton, OH : Morninside House, 1986. ISBN 0 - 527 - 57600 - X. First published in 1901 by Houghton Mifflin. McPherson, James M. Battle Cry of Freedom : The Civil War Era. Oxford History of the United States. New York : Oxford University Press, 1988. ISBN 0 - 19 - 503863 - 0. Rafuse, Ethan S. `` First Battle of Bull Run. '' In Encyclopedia of the American Civil War : A Political, Social, and Military History, edited by David S. Heidler and Jeanne T. Heidler. New York : W.W. Norton & Company, 2000. ISBN 0 - 393 - 04758 - X. Rafuse, Ethan S. A Single Grand Victory : The First Campaign and Battle of Manassas. The American Crisis Series. Wilmington, DE : SR Books, 2002. ISBN 0 - 8420 - 2875 - 7. Rawley, James A. Turning Points of the Civil War. Lincoln : University of Nebraska Press, 1966. ISBN 0 - 8032 - 8935 - 9. Robertson, James I., Jr. Stonewall Jackson : The Man, The Soldier, The Legend. New York : MacMillan Publishing, 1997. ISBN 0 - 02 - 864685 - 1. Salmon, John S. The Official Virginia Civil War Battlefield Guide. Mechanicsburg, PA : Stackpole Books, 2001. ISBN 0 - 8117 - 2868 - 4. Williams, T. Harry. Lincoln and His Generals. New York : Alfred A. Knopf, 1952. ISBN 0 - 9654382 - 6 - 0. National Park Service battle description Professor Thaddeus Lowe 's Official Report ( Part I ) Memoirs and primary sources Dyer, Frederick H., A compendium of the War of the Rebellion, Volume 1, 1908, Des Moines IA Longstreet, James. From Manassas to Appomattox : Memoirs of the Civil War in America. New York : Da Capo Press, 1992. ISBN 0 - 306 - 80464 - 6. First published in 1896 by J.B. Lippincott and Co. Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War : The Opening Battles, Volume 1 ( Pdf ), New York : The Century Co., 1887. U.S. War Department, The War of the Rebellion : a Compilation of the Official Records of the Union and Confederate Armies. Washington, DC : U.S. Government Printing Office, 1880 -- 1901 Further reading Wikisource has the text of the 1911 Encyclopædia Britannica article Bull Run. Cunningham, Horace H. ( 1968 ). Field medical services at the Battles of Manassas ( Bull Run ). Athens : University of Georgia Press. ISBN 9780820333557. Retrieved 20 February 2018. Davis, William C. Battle at Bull Run : A History of the First Major Campaign of the Civil War. Baton Rouge : Louisiana State University Press, 1977. ISBN 0 - 8071 - 0867 - 7. Goldfield, David, et al. The American Journey : A History of the United States. 2nd ed. New York : Prentice Hall, 1999. ISBN 0 - 13 - 088243 - 7. Gottfried, Bradley M. The Maps of First Bull Run : An atlas of the First Bull Run ( Manassas ) Campaign, including the Battle of Ball 's Bluff, June -- October 1861. El Dorado Hills, CA : Savas Beatie, 2009. ISBN 978 - 1 - 932714 - 60 - 9. Hankinson, Alan. First Bull Run 1861 : The South 's First Victory. Osprey Campaign Series # 10. London : Osprey Publishing, 1991. ISBN 1 - 85532 - 133 - 5. Hennessy, John, Ethan Rafuse, and Harry Smeltzer. `` Historians ' Forum : The First Battle of Bull Run. '' Civil War History 57 # 2 ( June 2011 ) : 106 -- 120. Hines, Blaikie. The Battle of First Bull Run, Manassas Campaign -- July 16 -- 22, 1861 : An Illustrated Atlas and Battlefield Guide. Maine : American Patriot Press, 2011. ISBN 978 - 1 - 61364 - 129 - 3. Longacre, Edward G. The Early Morning of War : Bull Run, 1861 ( 2014 ). Rable, George. `` The Battlefield and Beyond. '' Civil War History 53 # 3 ( September 2007 ) : 244 -- 51. External links Wikimedia Commons has media related to First Battle of Bull Run. Wikimedia Commons has media related to Manassas National Battlefield Park. Battle of Bull Run : Battle maps, photos, history articles, and battlefield news ( Civil War Trust ) `` Map of the Battles of Bull Run, 1861 '', prepared by Army engineer, National Archives and Record Administration, at World Digital Library Manassas National Battlefield Park website First Battle of Manassas : An End to Innocence, a National Park Service Teaching with Historic Places ( TwHP ) lesson plan Harper 's Weekly 1861 Report on the Battle of Bull Run Civil War Home website on First Bull Run Animated history of the First Battle of Bull Run FirstBullRun.co.uk The First Battle of Bull Run public domain audiobook at LibriVox First Manassas Campaign with Official Records and Reports Map of the Battles of Bull Run Near Manassas. Solomon Bamberger. Zoomable high - resolution map. Newspaper coverage of the First Battle of Bull Run Manassas Civil War 150th Anniversary July 21 -- 24, 2011 at the Library of Congress Web Archives ( archived 2011 - 05 - 05 ) Texts on Wikisource : Guernsey, Alfred H. ( 1879 ). `` Bull Run ''. The American Cyclopædia. Eastern Theater of the American Civil War 1861 Campaigns Chesapeake blockade ( May -- Jun ) Western Virginia ( Jun -- Dec ) Manassas ( Jul ) Carolina coast blockade ( Aug ) McClellan 's Operations ( Oct -- Dec ) Potomac blockade ( Oct -- Jan 1862 ) Major battles Fort Sumter 1st Bull Run 1862 Campaigns Burnside 's NC Expedition ( Feb -- Jun ) Jackson 's Valley ( Mar -- Jun ) Peninsula ( Mar -- Jul ) Northern Virginia ( Jul - Sep ) Maryland ( Sep ) Fredericksburg ( Nov -- Dec ) Goldsboro Expedition ( Dec ) Major battles Hampton Roads Williamsburg Seven Pines Seven Days Battles Oak Grove Beaver Dam Creek Gaines 's Mill Garnett 's & Golding 's Farm Savage 's Station White Oak Swamp Glendale Malvern Hill 2nd Bull Run Antietam Fredericksburg 1863 Campaigns Tidewater Operations ( Mar -- Apr ) Chancellorsville ( Apr -- May ) Gettysburg ( Jun -- Jul ) Bristoe ( Oct -- Nov ) Mine Run ( Nov -- Dec ) Major battles Chancellorsville Gettysburg 1864 Campaigns Valley Campaigns ( May -- Oct ) : Lynchburg, Early 's B&O Raid, Sheridan 's Campaign Operations Against Plymouth ( Apr -- May ) Bermuda Hundred ( May ) Overland ( May -- Jun ) Petersburg ( Jun -- Mar 1865 ) Major battles Wilderness Spotsylvania Court House North Anna Cold Harbor Trevilian Station 2nd Petersburg Crater 2nd Deep Bottom Globe Tavern 3rd Winchester Chaffin 's Farm Cedar Creek Boydton Plank Road 1865 Campaigns Wilmington ( Dec -- Feb ) Appomattox ( Mar -- Apr ) Major battles 2nd Fort Fisher Bentonville Fort Stedman Five Forks 3rd Petersburg Sailor 's Creek Appomattox Court House Armies James Potomac Virginia Shenandoah Northern Virginia Geography Departments Monongahela Susquehanna Landforms Cumberland Valley Gettysburg - Newark Lowlands Shenandoah Valley Fairfax County in the American Civil War Battles Battle of Blackburn 's Ford Battle of Chantilly Battle of Dranesville Battle of Fairfax Court House ( June 1861 ) Battle of Fairfax Court House ( June 1863 ) First Battle of Bull Run Second Battle of Bull Run Battle of Vienna, Virginia Skirmishes Bog Wallow Ambush Raids Burke 's Station Raid Mosby 's Raids Units 8th Virginia Infantry 17th Virginia Infantry 1st Virginia Cavalry 43rd Battalion of Virginia Cavalry Georgia Hussars ( later Jeff Davis Cavalry Legion, Company F ) 3rd Michigan Volunteer Infantry Regiment 45th New York Volunteer Infantry Regiment 16th Regiment New York Volunteer Cavalry First New Jersey Brigade 2nd Vermont Brigade XXII Corps ( Union Army ) Union Army Balloon Corps People Clara Barton Michael Corcoran Antonia Ford Thaddeus Lowe John Quincy Marr John S. Mosby Edwin H. Stoughton Robert H. Anderson Sites Clarens ( Alexandria, Virginia ) Centreville Military Railroad Colvin Run Mill Fort Lyon ( Virginia ) Fort Marcy Park Hope Park Huntley ( plantation ) Fort O'Rourke Oak Hill ( Annandale, Virginia ) Okeley Manor Ossian Hall ( plantation ) Ox Hill Battlefield Park Ravensworth ( plantation ) St. Mary 's Church ( Fairfax Station, Virginia ) Taylor 's Tavern William Gunnell House ( Fairfax, Virginia ) Mason 's Hill Minor 's Hill Munson 's Hill Upton 's Hill Bailey 's Crossroads American Civil War Origins Origins Issues Timeline leading to the War Antebellum era Bleeding Kansas Border states Compromise of 1850 Lincoln - Douglas debates Missouri Compromise Nullification Crisis Popular sovereignty Secession States ' rights President Lincoln 's 75,000 volunteers Slavery African Americans Cornerstone Speech Dred Scott v. 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Anderson Beauregard Bragg Buchanan Cooper Early Ewell Forrest Gorgas Hill Hood Jackson A.S. Johnston J.E. Johnston Lee Longstreet Morgan Mosby Polk Price Semmes E.K. Smith Stuart Taylor Wheeler Civilian Benjamin Bocock Breckinridge Davis Hunter Mallory Memminger Seddon Stephens Union Military Anderson Buell Burnside Butler Du Pont Farragut Foote Frémont Grant Halleck Hooker Hunt McClellan McDowell Meade Meigs Ord Pope D.D. 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Lee Monument Cemeteries Confederate Memorial Day Ladies ' memorial associations U.S. Memorial Day U.S. national cemeteries Veterans 1913 Gettysburg Reunion Confederate Veteran Grand Army of the Republic Military Order of the Loyal Legion of the U.S. Old soldiers ' homes Southern Cross of Honor United Confederate Veterans Related topics Related topics Military Arms Campaign Medal Cavalry Confederate Home Guard Confederate railroads Confederate Revolving Cannon Field artillery Medal of Honor recipients Medicine Leadership Naval battles Official Records Partisan rangers POW camps Rations Signal Corps Turning point Union corps badges U.S. Balloon Corps U.S. Home Guard U.S. Military Railroad Political Committee on the Conduct of the War Confederate States Presidential Election of 1861 Confiscation Act of 1861 Confiscation Act of 1862 Copperheads Emancipation Proclamation Habeas Corpus Act of 1863 Hampton Roads Conference National Union Party Radical Republicans Trent Affair Union leagues U.S. Presidential Election of 1864 War Democrats Music Battle Hymn of the Republic Dixie John Brown 's Body A Lincoln Portrait Marching through Georgia Maryland, My Maryland When Johnny Comes Marching Home Other topics Bibliography Confederate war finance Confederate States dollar Espionage Confederate Secret Service Great Revival of 1863 Naming the war Native Americans Cherokee Choctaw New York City Gold Hoax of 1864 New York City Riot of 1863 Photographers Richmond Riot of 1863 Sexuality Supreme Court cases Tokens U.S. Sanitary Commission Book Portal Stonewall Jackson Leadership Instructor, Virginia Military Institute Colonel, Virginia Militia Stonewall Brigade Second Corps of the Army of Northern Virginia Mexican -- American War Siege of Veracruz Battle of Contreras Battle of Chapultepec Battle for Mexico City American Civil War raids and expeditions Great Train Raid of 1861 Romney Expedition American Civil War battles and campaigns First Battle of Manassas Valley Campaign Seven Days Battles Northern Virginia Campaign Maryland Campaign Battle of Fredericksburg Battle of Chancellorsville Historic items Thomas Jonathan Jackson ( sculpture ) Winchester Headquarters Stone Mountain Stone Mountain Memorial half dollar Monument Avenue `` Stonewall Jackson 's Way '' CSS Stonewall USS Stonewall USS Stonewall Jackson Related Lee -- Jackson Day Virginia portal Fairfax County, Virginia Northern Virginia Washington metropolitan area Baltimore -- Washington metropolitan area Administration Fairfax County Public Schools Fairfax County Board of Supervisors Fairfax County Park Authority Fairfax County Economic Development Authority Fairfax County Public Library Fairfax County Fire and Rescue Department Fairfax County Police Department Fairfax County Sheriff 's Office Organizations Fairfax Symphony Orchestra Northern Virginia Chamber of Commerce Landmarks Fairfax County Government Center Wolf Trap National Park for the Performing Arts Inova Fairfax Hospital Mount Vernon Gunston Hall Tysons Corner Center Washington & Old Dominion Railroad Regional Park Great Falls Park Steven F. Udvar - Hazy Center Washington and Old Dominion Railway Fort Belvoir Transportation Air Manassas Regional Airport Washington Dulles International Airport Roads Fairfax County Parkway Springfield Interchange Virginia State Route 123 Dulles Toll Road ( VA 267 ) Transit Fairfax Connector Silver Line Virginia Railway Express Manassas Line Fredericksburg Line Culture Battles Battle of Chantilly First Battle of Bull Run Second Battle of Bull Run Events Celebrate Fairfax ! Education George Mason University University of Fairfax Northern Virginia Community College Prince William County, Virginia Northern Virginia Washington Metropolitan Area Administration Prince William Board of County Supervisors Prince William County Public Schools Prince William County Department of Parks & Recreation Prince William County Public Library Prince William County Department of Fire and Rescue Prince William County Police Department Prince William County Sheriff 's Office Organizations Prince William Chamber of Commerce Landmarks National Museum of the Marine Corps Marine Corps Base Quantico Hylton Performing Arts Center Manassas National Battlefield Park Jiffy Lube Live Old Dominion Speedway Prince William Forest Park Leesylvania State Park Potomac Mills Transportation OmniRide Washington Dulles International Airport Ronald Reagan Washington National Airport Manassas Regional Airport Prince William Parkway Virginia State Route 234 Interstate 66 Interstate 95 U.S. Route 1 Culture Battles First Battle of Bull Run Second Battle of Bull Run Events Dale City 4th of July Parade Education George Mason University Northern Virginia Community College Strayer University University of Northern Virginia Municipalities and communities of Prince William County, Virginia, United States County seat : Manassas Towns Dumfries Haymarket Occoquan Quantico CDPs Buckhall Bull Run Bull Run Mountain Estates Cherry Hill County Center Dale City Gainesville Independent Hill Lake Ridge Linton Hall Loch Lomond Marumsco Montclair Neabsco Nokesville Potomac Mills Quantico Base ‡ Sudley Triangle Woodbridge Yorkshire Unincorporated communities Aden Agnewville Antioch Batestown Bethel Brentsville Bristow Buckland Canova Catharpin Cornwell Featherstone Greenwich Groveton Hickory Ridge Hoadly Joplin Kopp Locust Hill Minnieville Rixlew Southbridge Sudley Springs Thoroughfare Wellington West Gate Footnotes ‡ This populated place also has portions in an adjacent county or counties Retrieved from `` https://en.wikipedia.org/w/index.php?title=First_Battle_of_Bull_Run&oldid=864929319 '' Categories : Fairfax County in the American Civil War Manassas Campaign Battles of the Eastern Theater of the American Civil War Confederate victories of the American Civil War Prince William County in the American Civil War Battles of the American Civil War in Virginia United States Marine Corps in the 18th and 19th centuries 1861 in the American Civil War 1861 in Virginia July 1861 events Hidden categories : Webarchive template wayback links CS1 : Julian -- Gregorian uncertainty Use mdy dates from November 2013 Pages using deprecated image syntax Coordinates on Wikidata Articles needing additional references from July 2018 All articles needing additional references Commons category with local link different than on Wikidata Articles with LibriVox links Webarchive template other archives Wikipedia articles incorporating a citation from The American Cyclopaedia Wikipedia articles incorporating a citation from The American Cyclopaedia with a Wikisource reference Talk Contents About Wikipedia Wikisource تۆرکجه Brezhoneg Català Čeština Dansk Deutsch Español فارسی Français Galego 한국어 Hrvatski Italiano עברית Magyar Nederlands 日本 語 Norsk Occitan Polski Português Română Русский Simple English Српски / srpski Suomi Svenska Türkçe Tiếng Việt 中文 22 more Edit links This page was last edited on 20 October 2018, at 14 : 26 ( UTC ). 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Question: who led confederate troops in the first battle of bull run
Answer: Brig. Gen. P. G. T. Beauregard