Columbus is a consolidated city-county located on the west-central border of the U.S. state of Georgia. Columbus lies on the Chattahoochee River directly across from Phenix City, Alabama. It is the county seat of Muscogee County, with which it officially merged in 1970. Columbus is the second-largest city in Georgia (after Atlanta), and fields the state's fourth-largest metropolitan area. At the 2020 census, Columbus had a population of 206,922, with 328,883 in the Columbus metropolitan area. The metro area joins the nearby Alabama cities of Auburn and Opelika to form the Columbus–Auburn–Opelika Combined Statistical Area, which had an estimated population of 486,645 in 2019. Columbus lies southwest of Atlanta. Fort Benning, the United States Army's Maneuver Center of Excellence and a major employer, is located south of the city in southern Muscogee and Chattahoochee counties. Columbus is home to museums and tourism sites, including the National Infantry Museum, dedicated to the U.S. Army's Infantry Branch. It has the longest urban whitewater rafting course in the world constructed on the Chattahoochee River. History Beginnings This was for centuries the traditional territory of the Creek Indians, who became known as one of the Five Civilized Tribes of the Southeast after European contact. Those who lived closest to white-occupied areas conducted considerable trading and adopted some European-American ways. Founded in 1828 by an act of the Georgia Legislature, Columbus was situated at the beginning of the navigable portion of the Chattahoochee River and on the last stretch of the Federal Road before entering Alabama. The city was named for Christopher Columbus. The plan for the city was drawn up by Dr. Edwin L. DeGraffenried, who placed the town on a bluff overlooking the river. Across the river to the west, where Phenix City, Alabama, is now located, lived several tribes of the Creek and other Georgia and Alabama indigenous peoples. Most Creeks moved west with the 1826 Treaty of Washington. Those who stayed and made war were forcibly removed in 1836. The river served as Columbus's connection to the world, particularly enabling it to ship its commodity cotton crops from the plantations to the international cotton market via New Orleans and ultimately Liverpool, England. The city's commercial importance increased in the 1850s with the arrival of the railroad. In addition, textile mills were developed along the river, bringing industry to an area reliant upon agriculture. By 1860, the city was one of the