Era
20th century
1,497
19th century
560
21st century
267
18th century
242
To 1500
195
1945-
175
17th century
163
16th century
132
1900-1999
106
1933-1945
102
Revolution, 1789-1799
97
To 70 A.D.
83
1989-
73
1993-
73
1991-
72
1945-1989
66
1939-1945
62
To 146 B.C.
60
1918-1945
59
1837-1901
58
To 332 B.C.
58
1960-
53
Ottoman Empire, 1288-1918
47
World War, 1939-1945
47
1800-1899
38
1789-1900
37
586 B.C.-70 A.D.
37
To 622
37
1990-
36
476-1492
36
Revolution, 1917-1921
36
20e siècle
35
Civil War, 1936-1939
35
1918-1933
34
1066-1485
33
1917-1948
32
1994-
31
1997-
31
1949-
30
British occupation, 1765-1947
30
Civil War, 1642-1649
30
Tudors, 1485-1603
30
1769-1821
29
1871-1918
29
1889-1945
29
1980-
29
Empire, 284-476
29
1914-1918
28
2000-
27
1789-1815
25
more ...