
Difference Engine No. 1
circa 1832
circa 1832
circa 1846
1847-1848
1838
1835
1850
1837-1840
circa 1850s
circa 1848
1846
1849
1844
1840
1848
1850
1834
1832
1845
1842
1893-4
1934
1830
1840
2000-100 BCE
1842
1840-1850
1842
1851
1837
1837
1850
circa 1840
1849
1837
1845
1840
1845
1834
1834
1610; 1923
1830-1850
1850
1849
1852
1834-1844
1837
1843
1955; 1830
1849
1830-1850