Black Hawk Purchase
The Black Hawk Purchase was a treaty between the Sauk - and Fox - Indians and the United States . It was closed on September 21, 1832 and came into force on June 1, 1833. The Sauk and Fox ceded their land east of the Mississippi River in what is now Illinois for $ 640,000 . 6,000,000 acres (about 24,000 km²) changed hands. The overwritten land was also called the Black Hawk Purchase.
The Black Hawk Purchase ended the Black Hawk War under the leadership of Chief Black Hawk , who was not involved in the contract itself, however, as he was in captivity at the time.
The second Black Hawk purchase is known to be the contract of October 1837, according to which the Sauk and Fox sold 1,250,000 acres (about 5,000 km²) of their new home, now Iowa .
On May 1, 1843, they also had to leave the remaining land in Iowa and moved to Kansas (third Black Hawk purchase).