Chief Black Kettle is born in 1803.

The Cheyeene and Arapaho tribes sign the Forever Treaty with Fort Wise, guaranteeing them the land of eastern Colorado.

A series of Fort Laramie treaties are signed by the Lakota, Cheyeene, and Arapaho tribes, delineating the extent of their territories.

The Cheyenne tribe, led by Chief Black Kettle, sign the Peace treaty with Fort Wise, agreeing not to interfere with the emigrants along the Smoky Hill Trail.

The Cheyenne and Arapaho tribes cede most of eastern Colorado.

Chief Black Kettle and Chief Lean Bear travel to Washington D.C. to meet President Lincoln, where they are presented with peace medals and documents.

Chivington's troops open fire near Chief Black Kettle's camp, along Sand Creek.

The Cheyenne tribe, led by Chief Black Kettle, sign the treaty of Little Arkansas.

The Cheyenne and Arapaho tribes sign the Medicine Lodge Treaty, promising them peace and protection from the white intruders, when relocated to the Indian Territory reservation.

Custer orders his troops to attack the Cheyenne tribe. Hundred of Indians were killed, along with many women and children captured.

Chief Black Kettle dies, during the Battle of Washita.