Era
1833
113
19th century
55
1765-1837
28
1769-1852
28
1792-1849
20
20th century
11
1775-1847
6
18th century
6
1778-1868
5
1788-1850
5
Devonian
5
1792-1878
4
17th century
4
1832
3
Ordovician
3
1728-1779
2
1747
2
1764-1845
2
1770-1846
2
1787-1870
2
1799-1852
2
1810-1820
2
1812-1870
2
1819-1878
2
1835
2
1856-1920
2
1874-1926
2
1897-1962
2
1980
2
Cretaceous
2
Early works to 1800
2
From 345 to 405 million years ago
2
Paleozoic
2
To 1800
2
1512-1594
1
1563-1612
1
1570-1606
1
1590-1676
1
1607-1677
1
1615-
1
1631-1707
1
1640-1705
1
1649-1721
1
1651-1712
1
1653-1708
1
1655-1707
1
1655-1720
1
1655-1729
1
1660-1670
1
1661?-1731
1
more ...