Map of the states and territories of the United States as it was from December 1846 to February 1848. On December 28 1846, a portion of Iowa Territory was admitted as the state of Iowa; the remainder became unorganized. On February 2 1848, as a result of the Mexican-American War, Mexico ceded a large portion of its land to the United States.
{{Information| |Description=Map of the states and territories of the United States as it was from |Source= |Date= |Author=Made by User:Golbez. |Permission=Own work, attribution required (Multi-license with GFDL and Creative Commons CC-BY 2.5) |other_