
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1853-1857
1862
1850
circa 1861
1858
1858
1869
1849
1830 (original); 1967 (model)
1872
1870
1872
1853
1865
1867-1868
1849
1854
1853
1852
1860
1955; 1830
1848
1858
1850
circa 1860
circa 1861
1867
1867
1872
1859
1856
1861
1861
1858
1855
1856
1867
1865-1866
1848-1852
1858
1893-4
1851
1934
1863-7
1860
1851
1852
1849
2000-100 BCE