Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: On the morning of this battle, General Tyler was sent to harass the opposing generals left wing until the reinforcements of Hunter and Heintzelman arrived. At the same time, Colonels Richardson and Davies were sent to attack the other flank of the Confederate army. Henry Slocums regiment broke through Confederate lines but defeat was staved off as the timely arrival of Confederate soldiers allowed Bernard Bee and others to mount a staunch defense at Henry House Hill. Afterwards, Union General Irvin McDowell was replaced with the man who would lead the Army of the Potomac, George McClellan. FTP, name this battle where Thomas Jackson earned the nickname Stonewall, the first major battle of the Civil War, a July 21, 1861 victory for the Confederates.
A:
History