Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1948-1953
1934
1690
1872
1949
1913
circa 1972
1994
1960-2007
1965
1872
1901-1930
1957
c. 1933
1885-1894
1930-1940
circa 1964
1867
1972
1901-1930
1663
circa 1955
1951
1666-1680
1601
1970-1971
1950-1960
1910
circa 1900
1900-1930
1795-1810
1890
1917
1915-1920
1601
1867
1926-1928
1588
1955-1965
1859
1588
1887-1903
1920-1925
1733-1795
2015