Era
20th century
157
19th century
42
1945-
20
21st century
20
18th century
18
1918-1945
15
1837-1901
8
1897-1999
8
1933-1945
8
1936-1945
8
17th century
6
1945-1989
6
1989-
4
1990-
4
2001-
4
Civil War, 1861-1865
4
16th century
3
1800-1950
3
1874-1965
3
1936-
3
1936-1953
3
1945-1953
3
1945-1964
3
1975-1985
3
1979-1997
3
1991-
3
1861-1865
2
1878-1953
2
1889-1945
2
1910-1936
2
1917-1936
2
1946-
2
1961-1997
2
1964-
2
1973-
2
1979-
2
1985-1995
2
1997-
2
2008
2
Early modern, 1500-1700
2
Famine, 1845-1852
2
Revolution, 1789-1799
2
Unification, 1990
2
Victoria, 1837-1901
2
1485-1603
1
1533-1592
1
1533-1603
1
1603-1714
1
1638-1715
1
1660-1714
1
more ...