Era
20th century
57
20e siècle
38
1971-1981
36
1900-1999
35
1945-
20
1989-
18
1971-
16
19th century
16
Since 1945
15
Revolution, 1775-1783
13
1775-1783
12
21st century
12
Since 1989
12
1775-1783 (Révolution)
11
1939-1945
11
1991
11
Since 1971
11
19e siècle
10
Precambrian
10
1971 - 1981
9
1993-
9
1975-1985
8
1981-1989
8
1945-1989
7
1992
7
2001-2009
7
From 570 million to 5 billion years ago
7
18th century
6
1973
6
1973-1993
6
1976-1985
6
1980-
6
1982
6
1985
6
1990
6
1997
6
Précambrien
6
1800-1999
5
1846-1848
5
1961-1975
5
1970-
5
1976
5
1979
5
1984
5
1985-1991
5
1993
5
2000
5
2000-2099
5
21e siècle
5
Mesozoic
5
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