
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1780-1850
1879
1853-1857
1829
1846
1829
1815-1825
circa 1861
1862
1850
1781-1790
1777-1785
1831
1858
1875
1801-1830
1872
1858
1849
1791
1795
1847-1848
1775
1830 (original); 1967 (model)
1821
1869
1870
1771-1830
1775
1872
1842
1854
1837
1794
1837
1842
1860
1850-1870
1771-1830
1771-1830
1771-1830
1845
1798
1856
1861
1861
1797
1872-1880
1934