
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1879
1870
1858
1830 (original); 1967 (model)
circa 1861
1862
1875
1865-1866
1860
1858
1880
1869
1858
1853-1857
1854
1860
1870-1880
1856
1861
1861
1879
1857-1870
1850
1858
1850
2000-100 BCE
1882
circa 1868
1851
1850-1870
1870s
1875
1853
1872-1880
1934
1880
circa 1860
1861-1866
1864
1865
1867-1868
1875
1853
1852
1877
1955; 1830
circa 1861
1867