20. øld

(19. øld - 20. øld - 21. øld)

20. øld var frá 1901 til 2000 í tí gregorianska kalendaranum.

Áratíggju og ár

1890-árini	1890	1891	1892	1893	1894	1895	1896	1897	1898	1899
1900-árini	1900	1901	1902	1903	1904	1905	1906	1907	1908	1909
1910-árini	1910	1911	1912	1913	1914	1915	1916	1917	1918	1919
1920-árini	1920	1921	1922	1923	1924	1925	1926	1927	1928	1929
1930-árini	1930	1931	1932	1933	1934	1935	1936	1937	1938	1939
1940-árini	1940	1941	1942	1943	1944	1945	1946	1947	1948	1949
1950-árini	1950	1951	1952	1953	1954	1955	1956	1957	1958	1959
1960-árini	1960	1961	1962	1963	1964	1965	1966	1967	1968	1969
1970-árini	1970	1971	1972	1973	1974	1975	1976	1977	1978	1979
1980-árini	1980	1981	1982	1983	1984	1985	1986	1987	1988	1989
1990-árini	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999
2000-árini	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009