
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1770
1701-1800
1870
1879
1632-1640
1601-1850
1681
1870
1501-1600
1830 (original); 1967 (model)
1846
1775
1858
1607-1653
1791
1690
1801-1900
1885
1875
1630-1642
1865-1866
1780-1850
1898
1815-1825
1899
circa 1861
1862
circa 1897
1898
1801-1838
1877-1897
1889
1858
1771-1830
1700-1850
1860
1795-1805
1880
1869
circa 1900
1744-1774
1845-1855
1801-1900
1821
circa 1842
1554
1858
1853-1857
1801-1830