1938 and 1951
2000-100 BCE
1948
1951
1950
circa 1950
1950-1951
1955; 1830
1949
4000-2001 BCE
1903 (original); 1982 (model)
1986 (replica); 1501-1600 (original)
1990-96
1830 (original); 1967 (model)
1950-07-24
1949-05-06