Era
20th century
18
21st century
11
1853-1890
2
2000
2
Civil War, 2011-
2
-303
1
1732-1799
1
1832-1919
1
1840-1926
1
1858-1919
1
1869-1949
1
1869-1954
1
1881-1968
1
1882-1956
1
1887-1947
1
1887-1968
1
1900-1977
1
1910-1946
1
1917-2003
1
1929-1945
1
1930-1961
1
1930-2012
1
1935-
1
1939-1945
1
1943
1
1945-
1
1949
1
1950-1986
1
1951-
1
1953-2018
1
1956-
1
1962
1
1963
1
1965
1
1967
1
1972
1
1975
1
1980
1
1981
1
1983
1
1985
1
1989
1
1990
1
1995
1
19th century
1
2002
1
2003
1
2005
1
2006
1
2008
1
more ...