Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1690
1872
1949
1744-1774
1913
circa 1972
1994
1960-2007
1965
1872
1957
1901-1930
1930-1940
c. 1933
1885-1894
1755
1867
circa 1964
circa 1955
1663
1972
1951
1901-1930
1601
1666-1680
1795-1810
1910
1950-1960
1890
1970-1971
1755
1900-1930
circa 1900
1601
1917
1915-1920
1588
1926-1928
1920-1925
1588
1955-1965
1867
1859
1733-1795
1887-1903
1588