
Difference Engine No. 1
circa 1832
circa 1832
1835
1838
1837
1837
1837
1837
1837
1838
1833
1835
1834
1832
1834
1834
1831
1934
1837
1830
1836
1955; 1830
1837
1893-4
1838
1863-7
2000-100 BCE
1831
1838
1832
1990-96
1830
1830-1835
1830 (original); 1967 (model)
1830
1775-1799 (original); 1900-1907 (model)
1831
1833
1930 (replica); 1834 (original)
1705-1737
1870-1877
1830
1832
1772 (original); 1919 (model)
1837
1835
1835
1838
1837
4000-2001 BCE
1642-1649 (original); 1883 (model)