
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1879
1870
1858
1830 (original); 1967 (model)
1875
1865-1866
circa 1861
1862
1860
1858
1869
1858
1865
1875
1877
1860
1955; 1830
1867
1867
1856
1861
1861
1879
1876
1878
1858
1858
1893-4
1934
1879
2000-100 BCE
1861-1866
1864
1857-1870
1875
1862
1870
circa 1868
1857
1879
1858
1875
1872
1859
1856
1867
1863-7
1870-1877