
Difference Engine No. 1
circa 1832
circa 1832
1831
1830 (original); 1967 (model)
1775-1799 (original); 1900-1907 (model)
1829
1955; 1830
1826
1863-7
1829
1833
1831
1829
1832
1831
1893-4
1830
2000-100 BCE
1826
1832
1826
1990-96
1830
1830
1826
1833
1829
1705-1737
1828
1870-1877
1830
4000-2001 BCE
1829
1829
1829
1826
1826
1832
1772 (original); 1919 (model)
1610; 1923
1642-1649 (original); 1883 (model)
1830
1668; 1924
1936
1830
2050-1750 BCE
1990-95
1829
1798 (original); 1977 (model)
300 BCE; 1905-1915
1845-1964