| Received From: | Year Gained | Year Lost | Territory | % Correct |
|---|---|---|---|---|
| France | 1803 | -- | Louisiana Purchase | 100%
|
| Annexation of Independent Republic | 1845 | -- | Texas | 93%
|
| Russia | 1867 | -- | Alaska | 91%
|
| Spain | 1819 | -- | Florida | 91%
|
| Annexation of Independent Republic | 1898 | -- | Hawaii | 89%
|
| Annexed from Spain | 1898 | -- | Guam | 84%
|
| Annexed from Spain | 1898 | -- | Puerto Rico | 80%
|
| United Kingdom | 1783 | -- | The 13 Colonies | 77%
|
| Annexation of Independent Republic | 1791 | -- | Vermont | 77%
|
| United Kingdom | 1846 | -- | Oregon Territory | 75%
|
| Spain | 1898 | 1946 | Philippines | 75%
|
| Leased from Panama | 1903 | 1999 | Panama Canal | 73%
|
| Denmark | 1917 | -- | U.S Virgin Islands | 70%
|
| Annexed in a settlement with the United Kingdom and Germany | 1899 | -- | American Samoa | 66%
|
| UN trust territory | 1947 | 1994 | Palau | 66%
|
| UN trust territory | 1947 | 1986 | F.S Micronesia | 64%
|
| UN trust territory | 1947 | 1986 | Marshall Islands | 61%
|
| UN trust territory | 1947 | -- | Northern Mariana Islands | 61%
|
| Mexico | 1853 | -- | Gadsden Purchase | 59%
|
| Cuba | 1903 | -- | Guantanamo | 55%
|
| Claimed Under Guano Act | 1867 | -- | Midway Islands | 50%
|
| Mexico | 1848 | -- | Mexican Cession | 36%
|
| Annexation of unoccupied area | 1899 | -- | Wake Island | 34%
|
| Claimed Under Guano Act | 1858 | -- | Johnston Atoll | 32%
|
| Claimed Under Guano Act | 1857 | -- | Navassa Island | 32%
|
| Acquired with the above | 1898 | -- | Palmyra Atoll | 30%
|
| Annexation of unoccupied area | 1922 | -- | Kingman Reef | 25%
|
| Claimed under Guano Act | 1857 | -- | Baker and Howland Islands | 23%
|
| Claimed Under Guano Act | 1858 | -- | Jarvis Island | 23%
|
| Annexation of unoccupied area | 1822 | 1847 | Liberia | 20%
|