
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1934
1872
1948-1953
1949
circa 1964
circa 1972
1960-2007
1690
1588
1588
1588
1588
1951
1755
circa 1805
1910
1867
1867
circa 1955
1997
1930-1940
circa 1750
1920-1925
1950-1960
1885-1894
1900-1930
1663
1917
1910
1859
1950-1960
1887-1903
1901-1930
1985
1984
1994
1795-1810
1957
1901-1930
1601
1601
1970-1971
1755
1864
1997
1872