Era
20th century
4
1900-1999
2
1933-
2
1960-1988
2
1886-1958
1
1890-1933
1
1896-1987
1
1900 - 1999
1
1910 - 1945
1
1916-
1
1917-1979
1
1924-
1
1924-2022
1
1925-
1
1925-2009
1
1931-1945
1
1935-
1
1936-
1
1945-1989
1
1979-
1
1988-2002
1
2000-2099
1
2002-
1
21st century
1
Japanese occupation, 1910-1945
1
Since 2002
1