Era
20th century
58
21st century
41
19th century
21
1921-1997
12
1859-1952
8
1949-
7
18th century
6
1976-2002
6
1988-2000
6
1926-1984
5
1945-
5
1975-1988
4
1861-1941
3
1906-1975
3
1933-1945
3
1947-
3
1000-1699
2
1175-1235
2
1767-1835
2
1818-1883
2
1870-1952
2
1889-1951
2
1904-1997
2
1912-1949
2
1918-
2
1925-1995
2
1928-2020
2
1942-
2
1949-1976
2
1982-
2
1997-
2
2002-
2
Revolution, 1956
2
Tiananmen Square Incident, 1989
2
To 1500
2
Transfer of Sovereignty from Great Britain, 1997
2
-1400
1
-1536
1
1225?-1274
1
1378-1446
1
1483-1546
1
1596-1650
1
1632-1677
1
16th century
1
1712-1778
1
1743-1794
1
1743-1826
1
1751-1836
1
1761 or 1762-1835
1
1769-1854
1
more ...