Napier's Bones
1690
1690
1610; 1923
1712-1713
1681
1675-1679
1720
1990-96
1700-1710
1654
1690-1710
Made late 1700s, modified 1800s
1673
1668-1672 Probable
1675-1700
1680
1672
1700
1675-1685
1650-1665
1685-1695
1700-1710
1708
4000-2001 BCE
1665-1670
2000-100 BCE
1663
1685-1695
1675-1685
1666-1680
1675-1700
1680-1690
1660
1663
1658
1650-1660
1695-1700
1685
1711
1695-1696
1675-1685
1665-1666
1675-1685
1692
1710
1663-1665
1680-1690
1700
1680
1680-1685
1696-1700