Era
20th century
8
1839-1914
3
1915-1980
3
1910-1986
2
Early modern, 1500-1700
2
1689-1801
1
16th century
1
1712-1778
1
1754-1836
1
1757-1827
1
17th century
1
1844-1900
1
1853-1902
1
1871-1922
1
1875-1926
1
1896-1934
1
1929-2007
1
1945-1990
1
1989-
1
1990-
1
19th century
1
21st century
1
Unification, 1990
1