
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1858
circa 1861
1862
1858
1869
1830 (original); 1967 (model)
1870
circa 1861
1867
1867
1859
1858
1865-1866
1858
1860
1862
1870
1865
1858-03-02
1866
1865
1867-1868
1860
1955; 1830
1861
1861
1934
1857-1870
circa 1868
1858
circa 1860
1857-1858
1865
1867
1893-4
1863-7
2000-100 BCE
1861-1866
1864
1857
1857-1858
1857-1858
1870s
1867
1857
1865
1860
1705-1737
1858