1776
1770
1776-1780
1783
1762
1769
1764
1778
1784
1782
1761
2000-100 BCE
1990-96
1771
1775
1986 (replica); 1501-1600 (original)
1765
1705-1737
1763
circa 1780
1760-1775
1778-1780
1761-1762
1772 (original); 1919 (model)
1760-1775 probable date
4000-2001 BCE
1780