Era
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1965-
1
1966-
2
1969-
2
1970-
1
1971-
1
1971-1990
1
1972-
1
1975-
1
1976-2002
1
1977-1981
3
1979-
1
1980
6
1980-
1
1981-1993
1
1981-2001
1
1984
1
1984-
1
1985-
2
1985-1991
1
1986
3
1989
1
1989-
5
1990-
3
1991
5
1991-
3
1994-
1
1997-
1
19th century
48
2000-
3
2000-2099
28
2001
3
2001-
1
2001-2009
1
2002-
3
2004
1
2005
4
2009-
1
2010
9
2011
8
2012
2
2017-2021
1
20th century
116
21st century
66
Anthropocene
2
Bombardment, 1945
1
British occupation, 1882-1936
2
Civil War, 1861-1865
16
Civil War, 2011-
1
Colonial period, ca. 1600-1775
1
Conquest, 1519-1540
3
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