the united states chevron_right

1800 - 1871

1872 - 1943

1944 - 1953

1954 - 1987

1988 - 2000

the united states has chevron_right

1800 - 1911

1912 - 1962

1963 - 1971

1972 - 1989

1990 - 2000

the united states is chevron_right

1800 - 1905

1906 - 1940

1941 - 1948

1949 - 1990

1991 - 2000

the united states have chevron_right

1800 - 1819

1820 - 1856

1857 - 1866

1867 - 1933

1934 - 2000

the united states are chevron_right

1800 - 1818

1819 - 1831

1832 - 1841

1842 - 1935

1936 - 2000