
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1905
1770
1701-1800
1919
1870
1879
1632-1640
1917
1903
1952-3
1681
1895-1904
1775
1846
1858
1690
1607-1653
1791
1870
1907
1830 (original); 1967 (model)
1601-1850
1801-1900
1885
1780-1850
1880-1920
1890-1910
circa 1861
1862
1901-1913
1898
1899
1858
circa 1897
1898
1902
1875
1630-1642
1901-1910
1865-1866
1895-1905
1801-1838
1860
1920
1880-1920
1918-1920
1815-1825
1771-1830
1795-1805