Era
20th century
22
17th century
6
18th century
4
1989-
4
21st century
4
19th century
3
Quaternary
3
To 1500
3
1646-1716
2
1667-1745
2
1889-1951
2
1898-1956
2
1953-
2
1972
2
Carboniferous
2
Paleozoic
2
Permian
2
-approximately 259
1
1.- 2. Century
1
1066-1485
1
1412-1431
1
1431-1506
1
1452-1519
1
1538-1612
1
1547-1616
1
1552?-1599
1
1555-1619
1
1557-1602
1
1560-1609
1
1564-1616
1
1599-1660
1
1659-1734
1
1689-1755
1
1728-1779
1
1740-1816
1
1749-1832
1
1756-1791
1
1759-1796
1
1777-1811
1
1789-1870
1
1789-1900
1
1792-1868
1
1792-1871
1
1805-1868
1
1811-1899
1
1813-1883
1
1824-1896
1
1830-1904
1
1868-
1
1874-1940
1
more ...