In exchange for extensive Delaware holdings in the state of Indiana, on September 24, 1829, the United States Government ceded a large tract of land to the Delaware Indians. Basehor is built on a small part of this tract. The Delawares held this land, or at least parts of it, until the 1860s. On July 4, 1866, the Secretary of the Interior of the United States was offered for sale what was left of the Delaware lands, then referred to as the Delaware Diminished Reserve, for not less than $2.50 per acre. The Leavenworth, Pawnee, and Western Railroad Company subsequently bought all of the remaining land on January 7, 1886.