
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
circa 1861
1862
1875
1872
1830 (original); 1967 (model)
1869
1870
1872
1860
1861
1861
1934
1879
circa 1868
1875
circa 1860
1865
1867-1868
1875
circa 1861
1867
1867
1872
1879
1876
1878
1867
1865-1866
1863-7
1860
1870-1877
1861-1866
1864
1876
1872 (original); 1909 (model)
1860-1877
1860-1877
1860-1877
1875
1862
1870
1893-4
2000-100 BCE
1870s
1877
1879
1865
1866