
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1690
1934
1872
1948-1953
1920-1925
1744-1774
1960-2007
1910
circa 1955
1997
1930-1940
circa 1750
circa 1972
1957
1950-1960
1663
1917
1910
1950-1960
1887-1903
1901-1930
1985
1984
1994
circa 1805
1867
1951
1867
circa 1964
1885-1894
1900-1930
1901-1930
1859
1755
1795-1810
1588
1601
1588
1588
1588
1601
1997
1872
1965
1982-1983
1925-1935
2015