
Flint blade hand tool, Stone Age.
8500-2000 BCE
8500-2000 BCE
5000-500 BCE
5000-500 BCE
1871-1900; 219-618 CE
1871-1900 (copy); 618-907 CE (original)
1684-1569 BCE; 1998
1760
before 1753
1990-96
1755-1756
1751
1760
1803-876
1756-1758
1753
before 1753
1988 (model); 1752 (original)
300 BCE; 1905-1915
1580-1588; 1930
1754
1756
1752
1756
1756
1756
1751
1756
1676; 1840-1865
1757
1753
1756
1754
1753
1753
1751
1754
1752
1894 (apparatus); 1742 (date of experiment)
3000 BCE
1756
1752
1566; 1876
1931; 750-850 CE
1960-1979
1754
1754
1756
100-1 BCE; 1501-1600; 1914
670 CE; 1920-1935
350-250 BCE; 1945-1955