
Difference Engine No. 1
circa 1832
circa 1832
1801-1830
1801
1815-1825
1819
1800-1830
1829
1796-1798
1805
1821
1806
1820
1803-1828
1821-1831
1955; 1830
1826
1808
1799
1805
1796-1826
1800-1830
1796-1797
1801-1830
1797-1804
circa 1800
1808
1809
circa 1810
1834
1829
1832
1834
1834
circa 1805
1801-1823
1812
1826
1831
1807
1815
1798
1815
1797
1810-1817
1802
1800
1807
1821
1805
1796