
Difference Engine No. 1
circa 1832
circa 1832
1955; 1830
1831
1826
1863-7
2000-100 BCE
1834
1829
1832
1893-4
1830
1829
1825
1833
1831
1826
1834
1834
1772 (original); 1919 (model)
1826
1830
1826
1831
1775-1799 (original); 1900-1907 (model)
1824
1833
1829
1829
1829
1705-1737
1828
1870-1877
1825
1830
1826
1832
1829
1930 (replica); 1834 (original)
1830 (original); 1967 (model)
1832
1824
1830
1990-96
1826
4000-2001 BCE
1829
1936
300 BCE; 1905-1915
1828
1833