
Difference Engine No. 1
circa 1832
circa 1832
1832
1831
1955; 1830
1893-4
1863-7
2000-100 BCE
1831
1831
1990-96
1832
1830 (original); 1967 (model)
1832
1772 (original); 1919 (model)
1870-1877
1705-1737
1775-1799 (original); 1900-1907 (model)
4000-2001 BCE
1936
300 BCE; 1905-1915
1832
1836-02
1831
1831
circa 1831
circa 1831
circa 1831
1899/12
1899/12
circa 1831
1856-11
1798 (original); 1977 (model)
1831
1832
1832
1832
1831
1831
1832
1831
30 CE
30 CE
1831
1831
1831
1832
1831
1831
1831
1831