2000-100 BCE
1976
(1962); 1982
1979
1976-1979
1977
1990-96
1986 (replica); 1501-1600 (original)
1978
4000-2001 BCE
1903 (original); 1982 (model)
circa 1976
1970 and post 1989
December 1979
2686-2613 BCE
1930 (original); 1984 (model)
circa 3000 BCE