Era
19e siècle
47
1801-1900
22
Tertiary
17
18e siècle
15
Carboniferous
15
Jurassic
15
Silurian
12
(1809-1882)
9
(1564-1642)
8
Cretaceous
8
(1571-1630)
7
To 1800
7
Triassic
6
(1642-1727;
5
(1707-1778)
5
(1769-1832)
5
(1769-1859)
5
1831-1900
5
19th century
5
(1707-1783)
4
15th-18th centuries
4
Early works to 1800
4
(0384-0322 av. J.-C.)
3
(1546-1601)
3
(1769-1832;
3
1664
3
1665
3
17e siècle
3
1874
3
19th Cent
3
19th Century
3
Antiquité
3
Archaean
3
Eocene
3
Miocene
3
Quaternary
3
(1473-1543)
2
(1567-1650)
2
(1596-1650)
2
(1642-1727)
2
(1660-1734)
2
(1707-1788;
2
(1748-1836)
2
(1753-1814;
2
(1774-1862)
2
(1777-1855)
2
(1803-1873;
2
(1820-1903)
2
(1824-1896)
2
(1834-1919)
2
more ...