
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1879
1870
1830 (original); 1967 (model)
1885
1862
1898
1899
circa 1897
1898
1875
1865-1866
1877-1897
1889
1880
1869
circa 1900
1884-1900
1879-1896
1888
1880-1900
before 1889
1870-1888
1895
1870-1880
About 1890
1896
1896
1879
1886
circa 1885
1895
circa 1890
circa 1890
circa 1890
circa 1890
1896
2000-100 BCE
1875-1885
1875
1892
1884
1882
1870
1888
circa 1868
1890
1898
1890