
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1872
1860
1870
1853-1857
1862
circa 1871
1852
1875
1858
1775-1799 (original); 1900-1907 (model)
1853-1857
1849
1871
1830 (original); 1967 (model)
1870
1846
1854
1845-1855
1856
1857-1870
1848
1858
2000-100 BCE
circa 1868
1851
1850-1870
1870s
1875
1934
circa 1860
1866-1870
1850-1859
1850
1855
1862
circa 1854
1850-1859
1860
1850-1860
1863-1865
1853
1850
circa 1861
1849
1860
1861
1867-1868
1861