
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1751-1900
1780-1850
1879
1853-1857
1770
1879-1896
1801-1900
1829
1846
1829
1815-1825
circa 1861
1862
1898
1850
1781-1790
1777-1785
1831
1801-1900
1858
1877-1897
1885
1875
1884
1897-1898
1801-1830
1872
1858
1849
circa 1900
1760-1775
1791
1889
1795
1884-1900
1801-1900
1847-1848
1775
1830 (original); 1967 (model)
1801-1900
1821
1869
1870
1880-1900
1870-1888
1771-1830
1775
1801-1899
1872