
Difference Engine No. 1
circa 1832
circa 1832
circa 1846
1815-1825
1850-1860
1858
1853-1857
1847-1848
1838
1829
1835
1850
1860
1837-1840
1855
1845-1855
circa 1850s
circa 1848
1846
1849
1844
1840
1860
1850-1859
1848
1858
1850
circa 1860
1834
1845-1855
1832
1845
1842
1856
1861
1861
1893-4
1934
1812
1830
circa 1808
1840
1825
2000-100 BCE
1813
1821-1850
1810-1840
1810-1840
1820-1830
1842
1840-1850