In the 1890s, growing frustration and resentment among the Plains Indians led to ?American Indians embracing the concept of assi
milation. American Indians joining the Ghost Dance movement . hostilities between American Indians and the Colorado militia. a new treaty between the federal government and tribal leaders.
I believe the answer you're looking for is "American Indians joining the Ghost Dance movement". The year is close to the events of mass killings like Wounded Knee.
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.