
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1878-1879
1862
1879
1870
circa 1871
1872
1858
1853-1857
1862
1860
1870
1870
1855
1879
1873
1877
1860
1858
1875
circa 1860
1863-1865
1856
1861
1861
1872-1880
1893-4
1934
1879
1880
2000-100 BCE
1861-1866
1864
1870s
1857-1870
1860-1880
1871
1855-1870
circa 1880
1870-1880
1851
1879
1853
1854
circa 1854
1878
circa 1854
1860
circa 1868