
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
circa 1861
1862
1858
1872
1858
1830 (original); 1967 (model)
1869
1870
1872
1860
1856
1861
1861
1934
1857-1870
circa 1868
1858
circa 1860
1865
1867-1868
circa 1861
1867
1867
1872
1859
1858
1855
1856
1867
1865-1866
1858
1863-7
1860
1861-1866
1864
1872 (original); 1909 (model)
1862
1855
1870
1893-4
2000-100 BCE
1870s
1857
1855-1860
1865
1857-1858
1857-1858
1858-03-02
1866