Replica of the first Morse telegraph, 1835
1934
1934
1834
1834
1834
1835
1955; 1830
1835
2000-100 BCE
1893-4
1863-7
1775-1799 (original); 1900-1907 (model)
1990-96
1705-1737
1870-1877
1772 (original); 1919 (model)
1930 (replica); 1834 (original)
1835
1835
4000-2001 BCE
1830 (original); 1967 (model)
1835
1834
1870-10
1730; 1967
1836-02
1872-08
1972-3
2500 BCE
1880-120
1860-1820
1871-1830
1915-1825
1990-95
1901-950
1800-1830
1800-1830
1066; 1876
1945-50
circa 1834
circa 1834
circa 1834
circa 1834
1835
1835
1834
1835
1835
3000-1500
1834
3000-2000 BCE