Question: When was the battle started in which Mo-nah-se-tah's father was killed?

Context paragraphs:
Battle of Tuchola Forest: The Battle of Tuchola Forest (German: "Schlacht in der Tucheler Heide" , Polish: "Bitwa w Borach Tucholskich" ) refers to one of the first battles of the Second World War during the Invasion of Poland, 1939.  The battle started on 1 September and ended on 5 September with a major German victory.  Due to lack of coordination and poor command of forces on the Polish side and German numerical and tactical superiority, the Germans managed to cripple the Polish Army of Pomerania and connect mainland Germany with East Prussia, breaking through the Polish Corridor.  It must be noted that the battle was fought against the wishes of General Wladyslaw Bortnowski who believed that the corridor should not be defended and asked on several occasions a permission to withdraw his units from the corridor.

Battle of Jupiter Inlet: The Battle of Jupiter Inlet occurred on January 15, 1838, between the Seminole Indians - Seminole Negro and the United States Navy.  This was the first of a series of battles led by the US Navy in the area, also referred to as the First Battle of Loxahatchee.  The battle started when Lt. Levin Powell led an expedition of 200 soldiers, sailors and marines, down the east coast of Florida.  The Navy spotted a trail alongside the Jupiter Inlet, and seventy-five men were landed to find the Seminole camp nearby.  The camp was led by Sam Jones, Ar-pi-uck-i, the spiritual medicine and war chief of the Miccosukee and Seminole people during the war.  The officers that advanced on the camp were outnumbered and ambushed.  After a long fight, the US retreated with five men killed in action and about twenty others wounded.  Ltn.  Powell was one of those killed in battle.

Battle of San Germano: The Battle of San Germano (or the Battle of Mignano) was the final battle in the Neapolitan War between an Austrian force commanded by Laval Nugent von Westmeath and the King of Naples, Joachim Murat.  The battle started on 15 May 1815 and ended on 17 May, after the remaining Neapolitan force was routed at Mignano.

Battle of Soor: The Battle of Soor (30 September 1745) was a battle between Frederick the Great's Prussian army and an Austro-Saxon army led by Prince Charles Alexander of Lorraine during the Second Silesian War (part of the War of the Austrian Succession).  The battle occurred in the vicinity of Soor, also known as Hajnice, in the modern day Czech Republic.  The battle started with a failed Austrian surprise attack on the outnumbered Prussians.  Despite initial setbacks the Prussian army managed to defeat the Austrians, due to an unexpected attack from a reserve regiment that refused to follow Frederick's orders.

Battle of Saigon (1955): The Battle of Saigon was a month-long battle between the Vietnamese National Army of the State of Vietnam (later to become the Army of the Republic of Vietnam) and the private army of the Bình Xuyên organised crime syndicate.  At the time, the Bình Xuyên was licensed with controlling the national police by Emperor Bảo Đại, and Prime Minister Ngô Đình Diệm issued an ultimatum for them to surrender and come under state control.  The battle started on April 27, 1955, and the VNA had largely crushed the Bình Xuyên within a week.  Fighting was mostly concentrated in the inner city Chinese business district of Cholon.  The densely crowded area saw some 500-1000 deaths and up to 20,000 civilians made homeless in the cross-fire.  In the end, the Bình Xuyên were decisively defeated, their army disbanded and their vice operations collapsed.

Battle of Washita River: The Battle of Washita River (also called Battle of the Washita or the Washita Massacre) occurred on November 27, 1868 when Lt. Col. George Armstrong Custer’s 7th U.S. Cavalry attacked Black Kettle’s Southern Cheyenne camp on the Washita River (near present-day Cheyenne, Oklahoma), part of a major winter encampment of numerous Native American tribal bands.

Battle of Chotusitz: The Battle of Chotusitz, or Chotusice, sometimes called the Battle of Czaslau, was fought on May 17, 1742, in Bohemia between the Austrians under Prince Charles Alexander of Lorraine and the Prussians under Frederick the Great.  The battle was a part of the War of the Austrian Succession, sometimes referred to as the First Silesian War.  The armies were about equal at 28,000 to 30,000 each, with the Prussians having about 2,000 more infantry and the Austrians some 2,000 more cavalry.  The Austrians were attempting to retake occupied Prague and the Prussians were trying to block them from accomplishing that.  The battle of Chotusitz was especially notable in that it was the only major battle started by the Austrians during this war.

Mo-nah-se-tah: Mo-nah-se-tah or Mo-nah-see-tah (c. 1850 - 1922), aka Me-o-tzi, was the daughter of the Cheyenne chief Little Rock.  Her father was killed on November 28, 1868, in the Battle of Washita River when the camp of Chief Black Kettle, of which Little Rock was a member, was attacked by the 7th U.S. Cavalry under the command of Lt. Colonel (brevet Major General) George Armstrong Custer.  Mo-nah-se-tah was among the 53 Cheyenne women and children taken captive by the 7th Cavalry after the battle.

Battle of Kalimanci: The Battle of Kalimanci (Bulgarian: Битка при Калиманци , Serbian: Битка код Калиманаца ) was a battle fought between the Kingdom of Serbia and the Kingdom of Bulgaria during the Second Balkan War.  The battle started on the 18th and ended on the 19th of July 1913.  The Bulgarian Army halted the Serbian Army from pushing them out of Macedonia and joining up with the Greek Army at the downstreams of the river Struma.  The battle ended in an important Bulgarian defensive victory.

Battle of Konary: The battle of Konary took place during the Great War, in May and June 1915 in the Sandomierz Uplands, near the town of Klimontów, Poland, between the Russian Army and the forces of Józef Piłsudski's Polish Legions.  The battle started on May 16, when the Russian 4th Army started its counter-offensive against the Central Powers in the Kingdom of Poland.  The offensive was directed against the wing of the Austrian 25th Infantry Division in the area of Opatów and Klimontów.  The Polish 1st Brigade was used as a stop-gap measure and held out until June 23, when the Russian offensive was finally repelled.  Both sides suffered heavy losses.

Supporting paragraphs: Mo-nah-se-tah Battle of Washita River
Answer: November 27, 1868