
Difference Engine No. 1
circa 1832
circa 1832
1834
1832
1825
1826
1834
1834
1808
1808
1809
1829
circa 1805
1807
1815
1815
1810-1817
1807
1821
1805
1812
1830
1807
1812
circa 1808
1807
1814
1816
1835
1821-1831
1815-1825
1806
1805
1831
1820
1934
1955; 1830
1807
1835
1893-4
1863-7
1808
1805-1815
1829
2000-100 BCE
1813
1833
1820-1830
1831
1810-1830
circa 1810