A map of the United States showing the territorial growth from 1783 to 1790. The map is color-coded to show the original territory after the American Revolutionary War, the Northwest Territory north of the Ohio River in 1787, the territory south of the Ohio River in 1790, and the Mississippi Territory. The map gives the dates of the admission to the Union of the states in the territories, and notes the cession of Florida by Spain in 1819.