
Clarke's Hydrometer (c. 1755)
1755
1755
1668; 1924
1610; 1923
circa 1750
1755
1750
1642-1649 (original); 1883 (model)
1752
1750
1752
1755
1752
1757
1755
2000-100 BCE
1752
before 1753
1752
1752
1752
1752
1751
1752
1990-96
1755
1705-1737
1755
1755
1750
1750
4000-2001 BCE
1990-95
1730-1760 (original); 1931-1939 (replica)
2800 BCE
circa 3000 BCE
2050-1750 BCE
1936
1755-1756
300 BCE; 1905-1915
1960-1979
1845-1964
700 BCE; 1931
2000-1001 BCE
1880-120
1755
circa 1800 BCE
1753-1754
15/7/27
15/7/27
1840-160