1927
1934
1924-1927
1926
1924
1921
1928
1920-1929
1921-1930
1920-1928
2000-100 BCE
before 1928
1922-1923
1921-1926
1925
circa 1920
1920-1925
1920-1930
circa 1930
1920
1930
1922
1923
1925-1928
1925-1927
1927-1929
circa 1927
1955; 1830