Why did Americans break their treaty with the Sioux regarding the Black Hills?

Which best explains how wealthy residents of italian cities contributed to the renaissance? a) wealthy residents bought works of art, which supported artists. b) wealthy residents participated in religion, which supported the church c) wealthy residents participated in music, which supported the arts. d) wealthy residents bought classical books, which supported scholars.

Between 1870 and 1916, approximately how many immigrants came to the united states? 10 million 25 million 75 million 125 million

What was the great awakening? a. a religious movement b. a social movement against slavery c. a political rebellion d. a scientific movement