Era
20th century
53
1971-1981
22
1900-1999
20
20e siècle
19
Revolution, 1775-1783
18
1939-1945
16
1945-
16
1971-
16
19th century
12
1945-1989
11
1989-
11
1775-1783
10
1775-1783 (Révolution)
10
Since 1945
10
1976-1985
7
Precambrian
7
1960-
6
1980
6
1993-
6
21st century
6
Cambrian
6
Since 1971
6
Since 1989
6
1846-1848
5
1973-1993
5
1976-
5
1980-2020
5
1991-
5
19e siècle
5
2001-2009
5
1840-1914
4
1960-1980
4
1961-1963
4
1973
4
1976
4
1981-1989
4
1981-1993
4
1982-
4
1985
4
1992
4
2000
4
From 570 million to 5 billion years ago
4
Précambrien
4
Since 1980
4
1700-1799
3
1800-1999
3
18th century
3
1913-
3
1913-1972
3
1914-1918
3
more ...