
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1770
1870
1879
1870
1858
1791
1775
1830 (original); 1967 (model)
1846
1885
1780-1850
circa 1861
1862
1815-1825
1771-1830
circa 1897
1898
1875
1865-1866
1801-1838
1860
1898
1899
1858
1795-1805
1877-1897
1889
1880
1845-1855
1801-1830
1869
1829
1822
1849
1858
1853-1857
1780
1847-1848
1821
1879-1896
1775
circa 1842
1829
1801
1800-1899
1888
before 1889
1801-1830
1870-1888