
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1875
1872
1830 (original); 1967 (model)
1869
1870
1872
1934
circa 1868
1875
1867-1868
1875
1867
1867
1872
1876
1867
1876
1872 (original); 1909 (model)
1875
1870
1893-4
2000-100 BCE
1870s
1866
1955; 1830
1873
1867
1872
1934
1872
1870
1839 (original); circa 1988 (replica)
1705-1737
1888
1873
1866-1870
4000-2001 BCE
1870
1870
1870-1877
1930 (replica); 1834 (original)
1874
1873
1874
1873
circa 1870
1668; 1924
1868
1990-95