
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1870
1872
1875
1830 (original); 1967 (model)
circa 1871
1873
1870
1874
1874
1869
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
1871
1642-1649 (original); 1883 (model)
1668; 1924
1868
1990-96
1866-1870
1610; 1923
1875
1870
1772 (original); 1919 (model)
2000-100 BCE
1872
1925; 1862
1874
1867
1872
1866
1990-95
1934
1866-1870
1869
1934
1801-1840 (original); 1901 (model)
1705-1737
1869
1867
1870s
1876
1876
circa 1870
1874
1580-1588; 1930
1873-1876
1871
4000-2001 BCE
1870-1877