Era
21st century
7
20th century
6
1893-1976
4
1949-1976
4
2000-
4
1949-
3
1937-
2
1951-
2
Siglo 21
2
1216-1294
1
1254-1323?
1
18th century
1
1946-
1
1951
1
1964-
1
1970-1994
1
2002-
1
Cultural Revolution, 1966-1976
1
Opium War, 1840-1842
1
S XX
1
S XXI
1
SXXI
1
Siglo 20
1
Suppression, 1773-1814
1
Uprising of 2008
1