Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1870
1878-1879
1879
1872
1610; 1923
circa 1871
1879
1834-1836
1830 (original); 1967 (model)
1875
1873
1871
1874
1869
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
1874
1870
1870
1878
1990-96
1801-1840 (original); 1901 (model)
1872
1875
1934
1772 (original); 1919 (model)
1878
1870s
1705-1737
1870
circa 1880
1872
1870-1880
1880
1875-1877
1880s
1876
1874
1870
1934
2000-100 BCE
1870
1876
1872-1880
4000-2001 BCE
1873
circa 1880
1870s