Replica of the first Morse telegraph, 1835
1934
1934
1839
1955; 1830
2000-100 BCE
1893-4
1863-7
1839
1772 (original); 1919 (model)
1839
1930 (replica); 1834 (original)
1986 (replica); 1501-1600 (original)
1839
1839
1990-96
1705-1737
1830 (original); 1967 (model)
1775-1799 (original); 1900-1907 (model)
4000-2001 BCE
1839
1870-1877
1888-185
1860-1820
1871-1830
1839
1839
1839
1839
1839
1839
2000-1350
1883-01
1972-3
1945-50
1990-95
1839
1864-05
1867-04
1864-04
1867-04
1870-10
1839
30 CE
30 CE
1839
1795-1805
1839
1066; 1876
3000-1500
1839
3500-1000