Era
20th century
275
Cretaceous
125
1900-1999
119
21st century
81
20e siècle
64
20e siècle
60
1971-
46
19th century
45
2000-2099
45
Devonian
43
From 65 to 140 million years ago
42
1900 - 1999
37
1935-1971
30
Since 1971
26
1945-
20
1905-1945
19
1870-1905
17
1800-1899
16
From 345 to 405 million years ago
16
21e siècle
15
1878-1943
14
1905-
14
1991-
14
21e siècle
13
1946-
12
19e siècle
12
Precambrian
12
1800-1999
11
1918-1945
11
Jurassic
11
Quaternary
11
1921-1935
10
1942-
10
1942-2013
9
Cambrian
9
Pleistocene
9
Tertiary
8
1870-1947
7
1918-
7
1929-
7
1930-
7
1939-1945
7
1946
7
2000 - 2099
7
1885
6
1900-2099
6
1902-
6
1914-1945
6
1920-
6
1928-
6
more ...