Difference Engine No. 1
circa 1832
circa 1832
1610; 1923
1842
1840
1840
1801-1840 (original); 1901 (model)
1705-1737
1833
1837
1828
1830
1825-1835
1843
1832
1839
1825
1870-1877
1840s
1893-4
c.1837
1830-1835
1826
1832
1826
1860-1920
1938; (1838)
circa 1840
circa 1840
circa 1840
circa 1840
circa 1840
circa 1840
circa 1840
2000-100 BCE
1833
circa 1840
1840
1842
1934
1842
1826
1834
1832
1830
1840
1834
1834
1835
circa 1842
1829