
Difference Engine No. 1
circa 1832
circa 1832
circa 1846
1847-1848
1838
1829
1835
1850
circa 1850s
circa 1848
1837-1840
1846
1844
1849
1840
1848
1850
1834
1832
1845
1842
1830
1840
1842
1842
1837
1837
1849
1846
1849
1835
1847
1829
1837
1829
1837
1840
1826
1845
1834
1834
1830-1850
1850
1934
1835-1845
1842
1841
1893-4
1863-7
2000-100 BCE
1825-1835