
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1862
1870
circa 1871
1872
1858
1853-1857
1862
1860
1870
1870
1855
1873
1877
1860
1858
1875
circa 1860
1863-1865
1856
1861
1861
1893-4
1934
2000-100 BCE
1861-1866
1864
1870s
1857-1870
1871
1855-1870
1851
1853
1854
circa 1854
1878
circa 1854
1860
circa 1868
1610; 1923
circa 1861
1865
1867-1868
1875
1853
1852
1877
1870-1875
1955; 1830