
Difference Engine No. 1
circa 1832
circa 1832
1815-1825
1820
1823
1821
1829
2000-100 BCE
1833
1808
1808
1809
1829
1826
1826
1810-1830
1813
1820
1955; 1830
1807
1806
1825
1805
circa 1810
1825
1832
circa 1805
1812
1831
1807
1815
1815
1815
1831
1820-1830
1810-1817
1893-4
1863-7
1808
1807
1821
1805
1812
1805-1815
1830
1807
1812
circa 1808
1829
1807
1814