
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1905
1770
1701-1800
1919
1870
1917
1879
1920-1925
1632-1640
1952-3
1601-1850
1681
1870
1895-1904
1901-1930
1903
1846
1858
1607-1653
1791
1907
1830 (original); 1967 (model)
1915-1925
1690
1775
1801-1900
1885
1902
1875
1630-1642
1901-1910
1865-1866
1780-1850
1880-1920
1880-1920
1890-1910
1898
1815-1825
1899
circa 1861
1862
circa 1897
1898
1801-1838
1920
1877-1897
1889
1858
1771-1830