
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1878-1879
1862
1879
1870
circa 1871
1872
1862
1860
1870
1870
1879
1873
1877
1860
1875
circa 1860
1863-1865
1861
1861
1872-1880
1893-4
1934
1879
1880
2000-100 BCE
1861-1866
1864
1870s
1860-1880
1871
circa 1880
1870-1880
1879
1878
1860
1882
circa 1868
1610; 1923
circa 1861
1884
1865
1867-1868
1875
1884
1877
1870-1875
1879
1955; 1830