
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1875
1869
1830 (original); 1967 (model)
1872
1870
1872
1865
1867-1868
1875
1877
1955; 1830
1875
1867
1867
1872
1876
1867
1865-1866
1893-4
1934
1870-1877
2000-100 BCE
1876
1872 (original); 1909 (model)
1875
1870
circa 1868
1865
1866
1870s
1865
1872
1865
1873
1867
1839 (original); circa 1988 (replica)
1874
1873
1872
1705-1737
1888
1865
1873
1870
1865-1877
1866-1870
4000-2001 BCE
1870
1865