Era
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1957-
1
1960-1980
1
1962-
3
1963 April 14-
1
1964-
1
1964-1975
2
1967-
1
1971-
1
1972-
1
1975-
3
1980-
3
1981-
2
1995-
1
19th century
6
2000-2099
1
2018
1
20th century
26
21st century
2
Civil War, 1861-1865
1
Colonial period, ca. 1600-1775
1
To 1876
2
United States
1
approximately 1790-1846
3