
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1839 (original); circa 1988 (replica)
circa 1868
1865
1867
1867
1865-1866
1865
1866
circa 1871
1865
1867-1868
1870
1871
1955; 1830
1934
1866-1870
1867
1893-4
2000-100 BCE
1870s
1867
1865
1868
1865
1930 (replica); 1834 (original)
1990-96
1865-1866
1870
1870
1830 (original); 1967 (model)
1870
1869
1772 (original); 1919 (model)
1866
1934
1870-1877
1871
1705-1737
1775-1799 (original); 1900-1907 (model)
1801-1840 (original); 1901 (model)
1888
1865
1866-1870
4000-2001 BCE
1870
1869
1936
300 BCE; 1905-1915