
Difference Engine No. 1
circa 1832
circa 1832
1801
1829
1815-1825
1798
1801-1830
1775-1799 (original); 1900-1907 (model)
1831
1849
1820
1830 (original); 1967 (model)
circa 1842
1846
1832
1805
1800
1830
1795
circa 1808
1840
1835
1848
1830-1840
2000-100 BCE
1813
1840
1801-1830
1801-1830
1801-1830
1801-1830
1934
1812
1805-1815
1820-1830
1802
1796-1798
1822-1840
1797-1804
1796-1797
1801-1830
1820
1812
1800-1830
circa 1800
1809
circa 1840
1796-1826
1834
1834
1842