
Difference Engine No. 1
circa 1832
circa 1832
1835
1955; 1830
1834
1832
1834
1834
1831
1934
1830
1833
1831
1835
1893-4
1863-7
2000-100 BCE
1832
1772 (original); 1919 (model)
1990-96
1830
1830-1835
1830 (original); 1967 (model)
1830
1775-1799 (original); 1900-1907 (model)
1835
1835
4000-2001 BCE
1831
1833
1930 (replica); 1834 (original)
1705-1737
1870-1877
1830
1832
1642-1649 (original); 1883 (model)
1990-95
1668; 1924
1610; 1923
1830
1976; 1776
1701-1800
1929 (copy); 1702-1714 (original)
300 BCE; 1905-1915
1834
1833
1889-02
1831
1835
1831
1833