
Difference Engine No. 1
circa 1832
circa 1832
1831
1705-1737
1830 (original); 1967 (model)
1990-96
1829
1955; 1830
1835
1834
1829
1832
1893-4
1934
1863-7
1830
1829
1825
2000-100 BCE
1833
1835
1826
1834
1834
1831
1826
1825-1835
1772 (original); 1919 (model)
1826
1830
1826
1831
1775-1799 (original); 1900-1907 (model)
1833
1829
1829
1829
1835
1828
1825
1830
1826
1826
1832
4000-2001 BCE
1829
1930 (replica); 1834 (original)
1830
1830-1835
1832
1870-1877