
Slide rule by Robert Bissaker
1654
1654
1660-1665
1663
1660-1665
1660-1665
1660-1665
1663
1640
1650
1650
1640
1640
1660
1640-1662
1660
2000-100 BCE
1990-96
1640
1660-1665
1650-1665
1658
1658
1650
1658
1650
1650
1650
1660
1650-1660
1640
1650
1640-1660
1660
4000-2001 BCE
1610; 1923
1642-1649 (original); 1883 (model)
1936
1642-1649
2050-1750 BCE
1990-95
300 BCE; 1905-1915
1845-1964
1701-1500
2000-100 BCE
1658
1658
1647
circa 3000 BCE
2000 BCE
1646