History
The plains were home to many nations: farming peoples such as the Mandan, Hidatsa and Arikara in earth-lodge villages along the Missouri, and the Pawnee, Omaha, Osage, Kansa and Wichita further south, while the Lakota, Cheyenne, Arapaho, Comanche and Kiowa became mounted bison hunters after horses spread north from Spanish New Mexico. French traders founded St. Louis in 1764, and the Louisiana Purchase of 1803 transferred the area to the United States. Lewis and Clark set out up the Missouri in 1804 and wintered among the Mandan in North Dakota.
Missouri entered the Union as a slave state under the Missouri Compromise of 1820, and Kansas became a battleground between pro- and anti-slavery settlers in the 1850s. Wagon trails to Oregon, California and Santa Fe began around Independence and Westport, now part of Kansas City. The Homestead Act of 1862 and the railways brought farmers, and the slaughter of the bison herds and a series of wars broke the Plains nations. The Black Hills, promised to the Lakota by treaty in 1868, were seized after gold was found; the US Supreme Court later ruled that the taking required compensation, but the Lakota have refused the money awarded. The Wounded Knee Massacre of 1890 on the Pine Ridge Reservation is one of its darkest episodes.
Oklahoma was Indian Territory, where the Cherokee, Chickasaw, Choctaw, Muscogee and Seminole were forcibly resettled, before land runs opened it to settlers from 1889. The Tulsa race massacre of 1921 destroyed the Black district of Greenwood, and the Dust Bowl of the 1930s drove many families west. The Brown v. Board of Education case, which ended legal school segregation in 1954, began in Topeka, and the 1995 Oklahoma City bombing killed 168 people.
