
Difference Engine No. 1
circa 1832
circa 1832
1829
1668; 1924
1829
1830 (original); 1967 (model)
1821
1955; 1830
1826
1833
1820
1832
1831
1830
1826
1831
1821
1829
1821-1831
1893-4
1825
1825
2000-100 BCE
1820-1830
1863-7
1829
1821
1820
1821
1772 (original); 1919 (model)
1826
1990-96
1824
1832
1830
circa 1821-1825
1826
1832
1823-1825
1823
1829
1828
1870-1877
1820
1823
1825
1821
1830
1775-1799 (original); 1900-1907 (model)
1824
1830