
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1879
1870
1858
1830 (original); 1967 (model)
1885
1875
1865-1866
circa 1861
1862
1889
1858
1860
1880
1869
1858
1888
before 1889
1870-1888
1886
1865
1875
1884
1877
1860
1884
1870-1880
1867
1867
1861
1861
1876
1878
1858
1872-1880
1893-4
1934
1879
1880
2000-100 BCE
1861-1866
1864
1875-1885
1857-1870
1875
1860-1880
1886
1884
1882