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