
Difference Engine No. 1
circa 1832
circa 1832
1801-1840 (original); 1901 (model)
1838
2000-100 BCE
1840
1837
1833
1835
1834
1834
1834
1838
1837
1836
1837
1839
1955; 1830
1837
circa 1840
1839
1837
1835
1837
1832
1831
1831
1840
1893-4
1838
1934
1837
1863-7
1830
1840
1838
1839
1839
1832
1830
1831
1840
1775-1799 (original); 1900-1907 (model)
1839 (original); circa 1988 (replica)
1833
1772 (original); 1919 (model)
1839
4000-2001 BCE
1837-1840
1832
1839