"The description and use of the Sector, Cross-staff and other Instruments", 2nd edition by Edmund Gunter
1636
1636
1630-1642
1630-1653
2000-100 BCE
1632-1640
1990-96
1640
1658
1658
1654
1636
4000-2001 BCE
1660
1640
1650
30 CE
1660
30 CE
2686-2613 BCE
1888-185
1945-50
1640-1650
1644
1370-1350 BCE; 1931
1931; 250 BCE
1636
1370-1350 BCE; 1931
1631
1650
1630
1655
2000-1000
100 BCE-300 CE; 1890-1920
1640-1660
1655
1972-3
2500 BCE
1638
1880-120
1642
1630-1660
1630-1660
1650-1660
1990-95
circa 3000 BCE
2000 BCE
1635
1638
1646
circa 1800 BCE