Era
1945-
6
20th century
6
1945-1989
4
To 1515
3
To 935
3
1900-1999
2
1945-1991
2
1492-1870
1
1600-
1
1700 - 1799
1
1700-1799
1
1815-1869
1
1837-1901
1
1861-1918
1
18th century
1
1939 - 1945
1
1939-1951
1
1945 - 1989
1
1955-1965
1
1975-
1
1975-1985
1
1990-
1
19th century
1
21st century
1
476 - 1492
1
476-1492
1
559 B.C.-330 B.C
1
559-330 B.C
1
Han dynasty, 202 B.C.-220 A.D
1
Medieval period, 987-1515
1
Middle Ages, 600-1500
1
Qin dynasty, 221-207 B.C
1
Revolution, 1789-1799
1
Since 1945
1
Since 1990
1
To 622
1
To 640
1
To 843
1
Tokugawa period, 1600-1868
1
Victoria, 1837-1901
1