
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1870
1872
1830 (original); 1967 (model)
1875
1866
1801-1840 (original); 1901 (model)
circa 1868
circa 1871
1876
1865
1873
1775-1799 (original); 1900-1907 (model)
1869
1874
1668; 1924
1871
1870s
circa 1868
1610; 1923
1870s
1874
1875
1877
1870
1866-1870
1870-1875
circa 1868
1872 (original); 1909 (model)
1955; 1830
1875
1875
1865
1867
1867
1876
1865-1866
1865
1893-4
1866
1934
1870-1877
1871
1642-1649 (original); 1883 (model)
2000-100 BCE
1867-1868
1870s
1867
1876