
Difference Engine No. 1
circa 1832
circa 1832
1775-1799 (original); 1900-1907 (model)
1955; 1830
1832
1893-4
1863-7
2000-100 BCE
1833
1833
1832
1772 (original); 1919 (model)
1990-96
1705-1737
1870-1877
1832
4000-2001 BCE
1830 (original); 1967 (model)
1668; 1924
1642-1649 (original); 1883 (model)
2050-1750 BCE
1990-95
1610; 1923
700 BCE; 1931
6000-5000BCE
1960-1979
1845-1964
1600-1500 BCE (original); 1900-1914 (copy)
1979-80
1833
1889-02
1850-1899
1833
1774; 1923
2000-100 BCE
1832
1883-01
1832
1936
1832
1730; 1967
1836-02
1872-08
3000-2500 BCE
1833
circa 3000 BCE
1832
2000 BCE
1832
1832
1832