
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1830 (original); 1967 (model)
1885
1875
1889
1880
1888
before 1889
1879
1886
circa 1885
1884
1875
1884
1877
1955; 1830
before 1889
1872
before 1889
1879
1876
1878
1872-1880
1893-4
1934
1880
1886
1875
2000-100 BCE
1875-1885
1876
1872 (original); 1909 (model)
1875
1884
1882
1888
1879
1889
1880-1889
1872
1872
1880
1873
1872
circa 1880
1884
1885
1889
1930 (replica); 1834 (original)