
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
circa 1871
1872
1871
1875
1775-1799 (original); 1900-1907 (model)
1871
1839 (original); circa 1988 (replica)
1873
1874
1934
1875
1873
1893-4
2000-100 BCE
1875
1876
1876
1872 (original); 1909 (model)
1875
1955; 1830
1872
1873
1990-96
1888
1934
1876
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1873
1875
1705-1737
1872
4000-2001 BCE
1930 (replica); 1834 (original)
1874
1872
1830 (original); 1967 (model)
1668; 1924
1990-95
1642-1649 (original); 1883 (model)
1872
1610; 1923
1875
2050-1750 BCE
1874
1834-1836
1874-1876
1960-1979