Kansas City is the largest city in the state of Missouri. It encompasses 318 square miles in parts of Jackson, Clay, Cass, and Platte counties. The city also serves as the anchor city of the Kansas City Metropolitan Area, the second largest in Missouri, which includes counties in both Missouri and Kansas. As of 2006, the city had an estimated population of 447,306, with a metro area of nearly two million. Kansas City was founded in 1838 as the "Town of Kansas" at the confluence of the Missouri and Kansas rivers and was incorporated in its present form in 1850. Situated opposite Kansas City, Kansas, the city was the location of several battles during the Civil War, including the Battle of Westport. The city is well known for its contributions to the musical styles of jazz and blues as well as to cuisine (Kansas City-style barbecue).