
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1870
1858
1830 (original); 1967 (model)
1846
circa 1861
1862
1875
1865-1866
1860
1858
1845-1855
1869
1849
1858
1853-1857
1847-1848
circa 1842
1854
1860
1842
1842
1845-1855
1845
1842
1856
1861
1861
1840
1857-1870
1845
1850
1848
1858
1850
2000-100 BCE
1840
circa 1868
1851
1845
1850-1870
1870s
1875
1853
1934
circa 1860
1861-1866
1864
1865