1984
2000-100 BCE
1984; 1983
1990-96
1986 (replica); 1501-1600 (original)
4000-2001 BCE
1970 and post 1989
15/7/27
2000-500
2686-2613 BCE
8500-2000 BCE
1930 (original); 1984 (model)
circa 3000 BCE
2000-800
2000-1000
5000-500 BCE
circa 1984
10000-5000 BCE
20-400
1991-1786 BCE
1990-95
2000-1350