
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1869
1872
1830 (original); 1967 (model)
1870
1872
1872
1872 (original); 1909 (model)
1870
1955; 1830
1870s
1893-4
1934
2000-100 BCE
circa 1868
1872
1705-1737
1934
1930 (replica); 1834 (original)
1872
1888
4000-2001 BCE
1839 (original); circa 1988 (replica)
1870
1870
1870-1877
1870
1668; 1924
circa 1870
1868
1990-95
1642-1649 (original); 1883 (model)
1610; 1923
1869
circa 1871
1925; 1862
1936
1900-1933 (model); 1869 (original)
circa 1868
circa 1870
1834-1836
1868
1868
1868
1869
1872
circa 3000 BCE
1871
2000 BCE
1868