The Chickasaw Nation is a Native American tribe located primarily in southern Oklahoma. They are one of the Five Civilized Tribes and have a rich history that dates back centuries. The tribe's government operates under a constitution and provides various services to its members, including education, health care, and economic development. The Chickasaw people originally inhabited areas in the southeastern United States, including parts of present-day Mississippi and Alabama. Following the Indian Removal Act of 1830, they were forcibly relocated to Indian Territory, now known as Oklahoma. Today, the Chickasaw Nation is known for its cultural preservation and economic initiatives.