Era
20th century
28
1900-1999
14
21st century
5
1800-1999
3
1958-
3
19th century
3
1912-1949
2
1949-
2
1976-2002
2
Middle Korean, 935-1500
2
Since 1949
2
1624-1662
1
1644 - 1912
1
1644-1912
1
1861 - 1912
1
1861-1912
1
1871-1952
1
1874-1961
1
1900 - 1999
1
1900 - 2099
1
1900-2002
1
1900-2099
1
1912 - 1949
1
1937-1945
1
1945-1949
1
1960-
1
1976 - 2000
1
1976-
1
1976-2000
1
1990
1
2000
1
2000-2099
1
20e siècle
1
20e siècle
1
618-907
1
935 - 1500
1
935-1500
1
Civil war, 1945-1949
1
Qing dynasty, 1644-1912
1
Self strengthening movement, 1861-1895
1
Sino-Japanese War, 1937-1945
1
Tang dynasty, 618-907
1