
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1870
1858
1830 (original); 1967 (model)
1875
1865-1866
circa 1861
1862
1858
1860
1869
1858
1853-1857
1853
1865
1854
1875
1860
1867
1867
1856
1861
1861
1876
1858
1893-4
1851
1934
2000-100 BCE
1861-1866
1864
1857-1870
1875
1855
1870
circa 1868
1850-1856
1850
1857
1851
1858
1875
1850
1872
1856
1867
1863-7
1876
1872 (original); 1909 (model)