How was the dakota reservation 1851-1863 important

Between it and the Treaty of Mendota, the Dakota were to cede 35 million acres of land at 12 cents an acre in exchange for $3,750,000 to be paid over time—money that they never received.

Explanation:

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abraham lincoln  (february 12, 1809  – april 15, 1865) was an american statesman, politician, and lawyer who served as the 16th  president of the united states  from 1861 until  his assassination  in april 1865. lincoln led the nation through the  american civil war, its bloodiest war and its greatest moral, constitutional, and political crisis.[2][3]  he preserved the  union,  abolished slavery, strengthened the  federal government, and modernized  the u.s. economy.