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1855
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Treaty with the Blackfeet, 1855
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1865
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Treaty with the Blackfeet and Gros Ventre, 1865
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1866
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Agreement at Fort Berthold, 1866
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1886
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Agreement with the Arikara, Hidatsa, and Mandan, 1886
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1886
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Agreement with the Assiniboine, Blackfeet, Blood, Gros Ventre, Piegan, and Sioux, 1886, 1887
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1895
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Agreement with the Assiniboine, and Gros Ventre, 1895
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