
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1875
1858
circa 1861
1862
1858
1869
1872
1830 (original); 1967 (model)
1870
1872
circa 1861
1867
1867
1872
1859
1879
1876
1878
1858
1865-1866
1858
1860
1870-1877
1870-1880
1876
1872 (original); 1909 (model)
1875
1862
1870
1879
1865
1858-03-02
1866
1865
1867-1868
1875
1860
1955; 1830
1870s
1861
1861
1872-1880
1893-4
1934
1879
1880
2000-100 BCE
1861-1866