Replica of the first Morse telegraph, 1835
1934
1934
1893-4
2000-100 BCE
1872
1872 (original); 1909 (model)
1955; 1830
1872
1990-96
1934
1930 (replica); 1834 (original)
1872
1873
1872
1705-1737
1872
1888
1873
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1830 (original); 1967 (model)
1775-1799 (original); 1900-1907 (model)
4000-2001 BCE
1888-185
1872
1872
1872
1873
1873
1873
1873
2000-1350
1883-01
1972-3
1945-50
1872
1990-95
30 CE
30 CE
1859; 1986
1873
1872
before 1872
3500-1000
1872
before 1872
before 1872
2686-2613 BCE
before 1873
before 1873
1872