
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1862
1872
1860
1839 (original); circa 1988 (replica)
1874
1705-1737
1830 (original); 1967 (model)
1872
1860
1856
1861
1861
1857-1870
1858
circa 1860
circa 1861
1858
1865
1857-1858
1857-1858
1858-03-02
1866
1870s
1857-1858
1865
1865
1867-1868
1875
1955; 1830
1875
circa 1861
1875
1867
1867
1859
1876
1858
1856
1867
1865-1866
1858
1893-4
1934
1863-7
2000-100 BCE
1861-1866
1864
1876