I don’t know what timeline map you have, but it was for the expansion of American Democracy.
The correct answer is "hostilities between American Indians and the Colorado militia."
The Wounded Knee Massacre, which occurred in 1890, was a confrontation between Native Americans who belonged to the Minincojou and the Hunkpapa Lakotas and the Colorado Militia, led by Colonel James Forsyth.
As a result of this battle, nearly 300 Native Americans and 25 American soldiers died. In 1990, the US Congress passed a resolution expressing a "deep regret" for the massacre.
The coup was the culmination of a conflict between the old and new political, economic, and social orders that had been under way since Gorbachev had risen to power in 1985. His perestroika and glasnost reforms had set in motion forces that were bound to collide at some point.
The band ? Do you have answer choices c