Era
1985-
63
1985-2002
36
20th century
35
1945-
30
Since 1985
28
1964-1985
27
Since 1945
19
1964-
16
1900 - 1999
15
1900-1999
15
1985 - 2002
14
19th century
11
Empire, 1822-1889
10
1822-1889
7
Since 1964
7
1918-
5
1954-
5
1800 - 1899
4
1822-
4
1900-1987
4
1945-1964
4
1964
4
1763-1822
3
1800-1899
3
1893-1895
3
1954-1964
3
1964 - 1985
3
1964 - 2002
3
21st century
3
Federalist Revolution, 1893-1895
3
Revolution, 1930
3
Since 1900
3
Since 1918
3
1608-1697
2
17th century
2
1822
2
1822 - 1889
2
1889-1930
2
1902-
2
1902-1982
2
1930
2
2000 - 2099
2
2000-2099
2
Declaration of Independence, 1822
2
Proterozoic
2
Revolution, 1789-1799
2
Revolution, 1964
2
To 1822
2
1500-1752
1
1549-1762
1
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