10. Why did the United States break its treaty with the Sioux Nation in 1874? A General Custer found gold in South Dakota.
B. The Sioux discovered gold in North Dakota.
C. The Sioux invaded North Dakota to get more land.
D. General Custer attacked a Sioux city in South Dakota.

June 19 is often a holiday in texas. it is emancipation day. what important event happened on emancipation day? a) it marks the end of slavery in texas. b) it marks end of the texas revolution. c) it marks the day texas became a state. d) it marks the last battle of the texas revolution.