Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1968
1910
circa 1956-1959
1920-1950
1872
1949
1967
1610; 1923
1920-1950
1955
1920-1950
1915-1925
1902-1917
1959
1889
1899-1919
1880-1940
1909-1910
1920-1950
1935
1893
1870-1920
1925-1930
1889
1884-1900
1901-1930
1895-1905
1939-1955
1967
1874-1902
1949
1960
1951-1953
1870
1920
1873-1920
1926-1932
1886-1927
1930-1939
1941-1963
circa 1920
1898
1963
1920-1958
1901-1920
1960
1880-1930
1897