Big Foot (Si Thanka) (1824? - December 29, 1890), also known as Spotted Elk, was the name of a chief of a sub-group of the Lakota Sioux. He was son of chief Lone Horn, and became a chief upon the death of his father. He was a highly renowned chief, with skills in war and negotiations. He was killed in 1890 in South Dakota, along with almost 300 other members of his tribe, … Wikipedia
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Chief Big Foot was born between 1820 and 1825 into the Minneconjou "Planters by the River" subgroup of the Teton Lakota (Sioux). www.u-s-history.com/pages/h3793.html