
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1839 (original); circa 1988 (replica)
1870
1875
1872
1870
1874
1874
1066; 1876
1878-1879
1872
1872-1880
1893-4
1934
1879
1875
1877
1882
1870-1880
1879
1876
1878
1870-1881
1870-1877
1880
2000-100 BCE
1870-1880
1876
1872 (original); 1909 (model)
1875
1870
1642-1649 (original); 1883 (model)
1875
1955; 1830
1879
1870s
1872
1880
1880
1873
1872
circa 1880
1879
1888
1878
1878
1934
1875-1877
1930 (replica); 1834 (original)