
Difference Engine No. 1
circa 1832
circa 1832
1815-1825
1819
1829
1821
1820
1821-1831
1826
1808
1833
1829
1808
1809
circa 1810
1829
1832
1812
1826
1831
1807
1815
1815
1810-1817
1807
1821
1812
1830
1807
1812
circa 1808
1807
1814
1816
1825
1807
1815
1893-4
1863-7
1808
2000-100 BCE
1813
1820-1830
1831
1810-1830
1955; 1830
1811-1812
circa 1821-1825
1821
1821
1832