
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
circa 1871
1775-1799 (original); 1900-1907 (model)
1871
1830 (original); 1967 (model)
1870
2000-100 BCE
circa 1868
1870s
1934
1867-1868
1955; 1830
1871
1867
1867
1867
1893-4
1870
1867
1888
4000-2001 BCE
1934
1839 (original); circa 1988 (replica)
1868
1772 (original); 1919 (model)
1870
1801-1840 (original); 1901 (model)
1990-96
1869
1705-1737
1870
1870
1870-1877
1930 (replica); 1834 (original)
1642-1649 (original); 1883 (model)
1936
1990-95
1610; 1923
1900-1933 (model); 1869 (original)
1668; 1924
1870
1868
1869
1871
1910-1921
circa 1870
1925; 1862
1868
1783; 1914