Replica of the first Morse telegraph, 1835
1934
1934
2000-100 BCE
1893-4
1955; 1830
1775-1799 (original); 1900-1907 (model)
1990-96
1934
1705-1737
1870-1877
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
4000-2001 BCE
1930 (replica); 1834 (original)
1830 (original); 1967 (model)
1870-10
1883-01
1730; 1967
1872-08
1972-3
2500 BCE
1880-120
1870-1850
1871-1830
1915-1825
1990-95
1901-950
1800-1830
1801-1850
1800-1830
1066; 1876
1888-185
1945-50
3000-1500
3000-2000 BCE
1834-1836
2000 BCE
1832-1850
30 CE
30 CE
circa 3000 BCE
1825; 1910
1877 (copy); 1700-1731 (original)
2686-2613 BCE
1824 (original); 1891 (model)
20-400
2000-1350
1-79 CE; before 1914
2000-1350
2000-1350
2000-1350