Difference Engine No. 1
circa 1832
circa 1832
1610; 1923
1829
1829
1829
1775-1799 (original); 1900-1907 (model)
1831
1831
1990-96
1772 (original); 1919 (model)
1705-1737
1828
1830
2000-100 BCE
1832
4000-2001 BCE
1826
1830
1955; 1830
1863-7
1870-1877
1830
1893-4
1829
1826
1830
1829
1832
1826
1826
1860-1920
1829
1826-1828
circa 1830s
1829
1832
1832
1826
1830
1829
1668; 1924
1990-95
1642-1649 (original); 1883 (model)
1830
1835-08
1830 (original); 1967 (model)
1826
1936
circa 1830s
1826