
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1870
1870
1830 (original); 1967 (model)
1862
1875
1865-1866
circa 1861
1869
1865
1875
1955; 1830
1875
circa 1861
1867
1867
1861
1861
1893-4
1934
2000-100 BCE
1861-1866
1864
1875
1862
1870
circa 1868
1865
1866
1870s
1865
1867-1868
1872
1867
1863-7
1872 (original); 1909 (model)
1867
1872
1872
1873
1839 (original); circa 1988 (replica)
1874
1873
1872
1865
1870
1934
1862-1866
1872
1865-1866