The 20th century ran from January 1, 1900 to December 31, 1999, although some people prefer to think of it in the sense of the 1900s, which ran from 1901 to 2000.
Years
- 1900
- 1901
- 1902
- 1904
- 1905
- 1906
- 1908
- 1909
- 1910
- 1914
- 1917
- 1918
- 1919
- 1920
- 1921
- 1922
- 1923
- 1925
- 1926
- 1927
- 1928
- 1929
- 1930
- 1931
- 1932
- 1933
- 1936
- 1937
- 1938
- 1939
- 1942
- 1944
- 1945
- 1946
- 1947
- 1949
- 1950
- 1951
- 1952
- 1954
- 1955
- 1956
- 1957
- 1958
- 1959
- 1961
- 1962
- 1963
- 1965
- 1966
- 1967
- 1968
- 1969
- 1973
- 1975
- 1976
- 1977
- 1979
- 1980
- 1981
- 1982
- 1983
- 1984
- 1985
- 1986
- 1987
- 1988
- 1989
- 1990
- 1991
- 1992
- 1993
- 1994
- 1995
- 1996
- 1997
- 1998
- 1999