Difference Engine No. 1
circa 1832
circa 1832
1610; 1923
1815-1825
1829
1821
1820
1829
1829
1775-1799 (original); 1900-1907 (model)
1831
1831
1990-96
1772 (original); 1919 (model)
1833
1934
1705-1737
1819
1820
1828
1835
1830
1825-1835
1821-1831
1815
2000-100 BCE
1822
4000-2001 BCE
1832
1825
circa 1810
1813
1814
1830
1826
circa 1810
1955; 1830
1815
1823
1820-1830
1863-7
1870-1877
1830
1812
1816
1823
1830-1835
1813
1821
circa 1820
1893-4