|St. Louis, MO|
Founded in 1764 on a site chosen for a fur trading post by Pierre Laclede Liguest, St. Louis was named for the French king Louis IX. Transfer of the Louisiana Territory to the United States was made here in 1804, the same year Lewis and Clark launched their famous trek westward. By 1817, the first steamboat arrived, and with it a nearly endless stream of pioneers heading for the Santa Fe, California and Oregon Trails. St. Louis' Forest Park was the site of the 1904 Louisiana Purchase Exposition, which introduced the world to ice cream cones and hot dogs, and was the subject of the Judy Garland musical "Meet Me in St. Louis."