Era
20th century
5
20th century --
4
19th century
3
1967-
2
21st century
2
21st century --
2
1135-1154
1
1769-1821
1
1783-1815
1
1789-1815
1
1789-1900
1
1818-1895
1
1879-1955
1
1917-1948
1
1922-
1
1933-
1
1939-1945
1
1942-1945
1
1944-
1
1948
1
1948-1960
1
1949-
1
1949-1976
1
1953-1985
1
1961-1969
1
1962-
1
1965-1980
1
1976-2002
1
1977-
1
19th century --
1
2001-2009
1
2008 --
1
Civil War, 1983-2005
1
Colonial period, ca. 1600-1775
1
Henry VIII, 1509-1547
1
Macedonian Expansion, 359 - 323 b.c
1
Qin dynasty, 221-207 B.C
1