
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1780-1850
1879
1829
1853-1857
1770
1846
1829
1862
1875
1850
1781-1790
1777-1785
1831
1815-1825
circa 1861
1858
1885
1858
1869
1849
1884
1760-1775
1791
1889
1795
1801-1830
1847-1848
1775
1830 (original); 1967 (model)
1821
1872
1870
1870-1888
1771-1830
1775
1872
1870-1880
1842
1853
1865
1867-1868
1793-1803
1849
1846-1859
1854
1875
1853
1884
1837