Era
Devonian
44
From 345 to 405 million years ago
20
19th century
18
Tertiary
18
Precambrian
17
Quaternary
17
1726-1797
14
18th century
10
From 2 to 65 million years ago
9
From 570 million to 5 billion years ago
9
Carboniferous
6
Mesozoic
5
From 2 million years ago
4
Paleozoic
4
Silurian
4
1700-1899
3
1801-1893
3
1802-1856
3
From 230 to 570 million years ago
3
From 405 to 425 million years ago
3
From 65 to 230 million years ago
3
1700-1799
2
1800 - 1899
2
1800-1899
2
1800-1999
2
1835-1924
2
20th century
2
Cenozoic
2
1780-1872
1
1788-1868
1
1792-1871
1
1797-1875
1
1818-1887
1
1832-1899
1
1842
1
1852-1916
1
1853-1932
1
1857
1
1868-1915
1
1876-
1
1876-1939
1
1879-1946
1
1882-
1
1882-1955
1
1948-1993
1
Dévonien
1
From 280 to 345 million years ago
1
From 345 to 500 million years ago
1
From 65 million years ago
1
Geschichte 1800-1900
1
more ...