
Difference Engine No. 1
circa 1832
circa 1832
1830 (original); 1967 (model)
1831
1835
1775-1799 (original); 1900-1907 (model)
1837
1668; 1924
1610; 1923
1837
1837
1837
1837
1834
1832
1834
1834
1893-4
1837
1830
1836
1837
1955; 1830
1642-1649 (original); 1883 (model)
1835
1837
1863-7
2000-100 BCE
1833
1831
1934
1832
1772 (original); 1919 (model)
1930 (replica); 1834 (original)
1830
1831
1833
1835
1835
1830
1990-96
1830
1830-1835
1705-1737
1870-1877
1837
1832
4000-2001 BCE
1990-95
1833
1830