Arkansas is a state in the U.S. where people are from. It is in the South, and it is part of the South Central region. The name Arkansas comes from the Osage language. The Quapaw people are a tribe in Arkansas. The state is mostly mountains and hills, called the U.S. Interior Highlands. The land in the south is called the Arkansas Timberlands, and it is mostly forest land. It is also called the Arkansas Delta, because it is flat like a delta. The Mississippi River goes through Arkansas, and it has a big river there called the Arkansas River. Arkansas was admitted to the U.S. as its 25th state in 1836 (a long time ago). It was part of French Louisiana and the Louisiana Purchase before that. It was a territory before that (like Utah was).