
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1862
1860
1839 (original); circa 1988 (replica)
1870
1885
1875
1872
1870
1874
1869
1853-1857
1874
1858
1889
1066; 1876
1888
1878-1879
1872
before 1889
before 1889
About 1890
1856
1875-1890
1861
1861
1872-1880
1893-4
1934
1879
1880
2000-100 BCE
1870-1890
1861-1866
1875-1885
1857-1870
1860-1880
1886
1858
1875
1850
circa 1860
1865
1875
1884
1852
1877
1955; 1830
1886