Era
20th century
8
19th century
4
16th century
3
17th century
3
1989-
2
21st century
2
To 1500
2
14th century
1
15th century
1
1886-1931
1
1886-1939
1
18th century
1
1931-1939
1
1941-2009
1
1944-
1
1994-
1
711-1516
1
Classical period, 1500-1700
1
Revolution, 1917-1921
1
Roman period, 218 B.C.-414 A.D.
1
To 1800
1
To 500
1