
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1878-1879
1879
1870
circa 1871
1872
1870
1870
1879
1873
1877
1875
1879
1870-1880
1879
1875
1875
1876
1878
1872-1880
1934
1875
1870
1893-4
1880
2000-100 BCE
1870s
1878
1871
circa 1880
1877
1870-1875
1955; 1830
1870-1880
1879
1870-1877
1870-1880
1876
1872 (original); 1909 (model)
1879
1610; 1923
1872
1880
1880
1873
1775-1799 (original); 1900-1907 (model)
1870-1880
1878
1930 (replica); 1834 (original)