
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1858
1870
1830 (original); 1967 (model)
circa 1861
1862
1858
1865-1866
1860
1869
1858
1853-1857
1849
1854
1860
1856
1861
1861
1857-1870
1850
1848
1858
1850
2000-100 BCE
1855
1870
circa 1868
1850-1856
1857
1851
1850-1870
1858-03-02
1870s
1865
1853
1865
1849
1867
1867
1858
1893-4
1934
1867-1868
1853
1852
1955; 1830
circa 1860
circa 1861
1872