Oglala Sioux chief Crazy Horse is fatally bayoneted by a U.S. soldier after resisting confinement in a guardhouse at Fort Robinson, Nebraska. A year earlier, Crazy Horse was among the Sioux leaders who defeated George Armstrong Custer's Seventh Cavalry at the Battle of Little Bighorn in Montana Territory. The battle, in which 265 members of the Seventh Cavalry, including Custer, were killed, was the worst defeat of the U.S. Army in its long history of warfare with the Native Americans.
After the victory at Little Bighorn, U.S. Army forces led by Colonel Nelson Miles pursued Crazy Horse and his followers. His tribe suffered from cold and starvation, and on May 6, 1877, Crazy Horse surrendered to General George Crook at the Red Cloud Indian Agency in Nebraska. He was sent to Fort Robinson, where he was killed in a scuffle with soldiers who were trying to imprison him in a cell.