Telescope by Galileo (replica)
1610; 1923
1610; 1923
1735-1745
1720
1705-1737
1720
1745
1745
1720-1730
1725
1740
1730
1725
1739
1725
1860-1920
2000-100 BCE
1742
1742
4000-2001 BCE
1990-96
1730
1724
1726-1728
1728
1742
1738
1720-1730
1720
1668; 1924
1642-1649 (original); 1883 (model)
1936
300 BCE; 1905-1915
1733
circa 1740
1960-1979
2050-1750 BCE
1580-1588; 1930
100-1 BCE; 1501-1600; 1914
1719-1733
1740
1910-1921
1739
2000-1001 BCE
1738
700 BCE; 1931
1731
1894 (apparatus); 1742 (date of experiment)
2000-100 BCE
1920-1923; 1963
1931; 750-850 CE