
Difference Engine No. 1
circa 1832
circa 1832
1815-1825
1830
1821
1775-1799 (original); 1900-1907 (model)
1820
1829
1808
1812
1830
circa 1808
1825
1826
1808
1809
1821-1831
1832
1829
1810-1817
1814
1833
circa 1810
1812
1820
1955; 1830
1807
1826
1831
1807
1815
1815
1893-4
1863-7
1808
1807
1821
1807
1812
1829
1807
1816
2000-100 BCE
1813
1820-1830
1831
1810-1830
1815
1826
1990-96
1830