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Blackfeet attacked by Shoshone who are on horseback. First time Blackfeet have seen horses.
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Blackfeet probably acquired their first horses in peaceful trade with their neighbors, the Flathead, Kootenai, and Nez Perce
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Hudson Bay Company builds Buckingham House on the Saskatchewan River in Canada, reaching Blackfeet country. Blackfeet obtain guns through trade.
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Small pox epidemic sweeps through Blackfeet country, killing hundreds.
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Lewis (of Lewis and Clark) encounters Blackfeet at the junction of Two Medicine River and Badger Creek. Lewis kills one of them when they tried to steal a gun.
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Trader Alexander Henry compiles a census of the Blackfeet, finding a total of 5,200 people among the Piegan, Blackfeet, and Blood tribes.
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The Bureau of Indian Affairs established within the U.S. War Department.
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First peaceful trade between the Americans and Blackfeet by Blackfeet by Kenneth McKenzie.
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"Lame Bull's Treaty is signed. As first such peace treaty between the Blackfeet and the US Government it defines the boundaries of "The Blackfeet Nation."
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Annuity payments from the US Government to the Blackfeet do not arrive. Blackfeet send letter of protest to Washington.
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Massacre on the Marias River. U.S. Soldiers mistakenly attack the camp of Heavy Runner, a friendly chief, while looking for the murderers of Clark. Over 200 killed, 140 women and children captured. Blackfeet never face the U.S. Army in battle again.
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By act of Congress, the Blackfeet reservation boundary moved northward to Birch Creek-Marias River line. The Blackfeet are not consulted
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Starvation Winter. Buffalo herds suddenly disappear. 600 Blackfeet starve during the winter and spring. The Blackfeet become sedentary people, dependent on government rations.
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Blackfeet sell the land that is to become Glacier National Park for the sum of $1,500,00 to be paid at $150,000 per year for ten years.
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U.S. policy to treat the Indian reservation as property of the entire tribe is reversed in favor of a policy of allotment. Blackfeet reservation land is divided among individual Indians, each receiving 320 acres, held in trust by the government.
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U.S. Census reports that 2,268 Indians are living on the Blackfeet reservation, about the same number that lived there in 1885
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American Indians become citizens of the United States.
