United Nations States and Years of Admittance
WorldGeopoliticalPeriods of time when countries became members of the United Nations. Use timeline controls at bottom of the map to display data by year.
UNCountries that joined the United Nations from 1945 to 1976 are shaded blue. U S A, U K, and China are shaded are marked for 1945. Countries like Japan and Germany are marked for the 1950s. Many African and Asian nations joined in the 1960s and 1970s.
Value | Extent of U.S., 1803 | Louisiana Purchase, 1803 | West Florida, 1810–1813 | British Cession, 1818 | East Florida, 1819 | Northern Maine, 1842 | Texas Annexation, 1845 | Oregon Country, 1846 | Mexican Cession, 1848 | Gadsden Purchase, 1853 | Alaska, 1867 | Hawaii, 1898 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 91.6% | 79.0% | 7.81% | 30.8% | 98.3% | 16.6% | 50.1% | 57.7% | 66.4% | 12.6% | 63.8% | 91.5% | ||
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