Difference Engine No. 1
circa 1832
circa 1832
1610; 1923
1847-1848
1834-1836
1844
1849
1829
1842
1821
1820
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
circa 1848
1850
1840
1848
1831
1840
1808
1990-96
1838
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1934
1819
1705-1737
1838
1844
1833
1820
1820-1850
1837
1828
1830
1825-1835
1821-1831
1846
circa 1850s
1815
1822
1840-1845
2000-100 BCE
1846
1843
circa 1810
1813
1832
1840-1850
4000-2001 BCE
1934