
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1878-1879
1879
1872
1860
1870
1853-1857
1862
circa 1871
1852
1875
1880
1858
1879
1775-1799 (original); 1900-1907 (model)
1853-1857
1849
1871
1830 (original); 1967 (model)
1870
1846
1854
1845-1855
1856
1879
1857-1870
1848
1858
2000-100 BCE
circa 1868
1851
1850-1870
1870s
1875
1934
1880
circa 1860
1866-1870
1879
1850-1859
1850
1855
1862
circa 1854
1850-1859
1870-1880
1860
1850-1860
1863-1865