
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1839 (original); circa 1988 (replica)
1870
1885
1875
1872
1870
1874
1869
1874
1889
1066; 1876
1888
1878-1879
1872
1875-1890
1872-1880
1893-4
1934
1879
1870-1890
1886
1875
1877
1886
1882
circa 1885
1888
1890
1890
1895
1870-1880
before 1889
before 1889
About 1890
1879
1876
1878
1894
1890-1894
1892
1880
2000-100 BCE
1875-1885
1885-1895
1880-1890
1875
1892
1884