On December 29th 1890, in the final chapter of America's long Indian wars, the U.S. Cavalry killed 146 Sioux at Wounded Knee, on the Pine Ridge reservation in South Dakota. Throughout 1890, the U.S. government worried about the increasing influence at Pine Ridge of the Ghost Dance spiritual movement, which taught that Indians had been … Continue reading December 29 1890 US Army massacres Indians at Wounded Knee