A map from 1911 of the United States showing the territorial growth from the original States and the Northwest Territory in 1783 to the Gadsden Purchase of 1853. The map is color-coded to show the progression from the original thirteen States and Northwest Territory, the French cession of Louisiana in 1803, the Oregon Country, Spanish cession of Florida in 1819, Texas annexation in 1845 and cession in 1850, the first Mexican cession in 1848, and the second Mexican cession or Gadsden Purchase in 1853.