Difference Engine No. 1
circa 1832
circa 1832
1610; 1923
1834-1836
1829
1829
1829
1775-1799 (original); 1900-1907 (model)
1831
1831
1990-96
1833
1934
1772 (original); 1919 (model)
1705-1737
1828
1835
1830
1837
1825-1835
2000-100 BCE
1832
4000-2001 BCE
1825
1830
1837
1826
1955; 1830
1836
1823
1863-7
1870-1877
1830
c.1837
1823
1837
1830-1835
1837
1893-4
1829
1826
1835
1830
1829
1832
1824
1823-1825
1824
1826
1835
1826