
Difference Engine No. 1
circa 1832
circa 1832
1829
1832
1893-4
1830
1825
2000-100 BCE
1826
1610; 1923
1955; 1830
1829
1826
1831
1863-7
1829
1833
1831
1826
1990-96
1830
1832
1772 (original); 1919 (model)
1775-1799 (original); 1900-1907 (model)
1824
1830
4000-2001 BCE
1829
1833
1830
1826
1831
1823-1825
1829
1829
1829
1705-1737
1828
1870-1877
1823
1825
1823-1825
1826
1826
1832
1830 (original); 1967 (model)
1823
1824
c.1825
1830
1990-95