Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1853-1857
1845-1855
1862
1860
circa 1861
1860
1839 (original); circa 1988 (replica)
circa 1848
1850
1870
1851
1848
1858
1878
1858
1990-96
1857
1934
1872
1858
1878
1851
1872
1867
1857-1858
2000-100 BCE
1858
circa 1860
circa 1854
1865-1866
1934
1863-1865
4000-2001 BCE
1862
1854
1873
1872-1880
1870
1850
1955; 1830
circa 1854
1851
1865-1875
1861-1866
1857-1858
circa 1860
circa 1880
1879