
Difference Engine No. 1
circa 1832
circa 1832
1829
1815-1825
1852
1775-1799 (original); 1900-1907 (model)
1831
1849
1820
1830 (original); 1967 (model)
circa 1842
1846
1854
1832
1805
1830
circa 1808
1840
1835
1830-1850
1848
1830-1840
2000-100 BCE
1813
1840
1851
1934
1812
1805-1815
1821-1850
1820-1830
1802
1822-1840
1820
1812
1850
circa 1854
1809
circa 1840
1853
1850
1834
1834
1842
1849
1842
1808
1850
1830-1850
1837
1845