Difference Engine No. 1
circa 1832
circa 1832
1610; 1923
1834-1836
1842
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
1840
1840
1990-96
1838
1838
1934
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1705-1737
1838
1833
1837
1835
2000-100 BCE
1832
4000-2001 BCE
1839
circa 1840
1837
circa 1840
1955; 1830
1840
1836
1870-1877
1863-7
1840
1842
1841
1840s
c.1837
1893-4
1837
1841
1842
1837
1840
1835
1832
1842
1835-1840
1835
1842
1840
circa 1842