Replica of the first Morse telegraph, 1835
1934
1934
2000-100 BCE
1893-4
1853
1863-7
1853
1955; 1830
1990-96
1930 (replica); 1834 (original)
1853
1801-1840 (original); 1901 (model)
1705-1737
1870-1877
1772 (original); 1919 (model)
4000-2001 BCE
1934
1839 (original); circa 1988 (replica)
1775-1799 (original); 1900-1907 (model)
1830 (original); 1967 (model)
1853
1825; 1910
30 CE
30 CE
2686-2613 BCE
1888-185
1853
1945-50
1853
1853
1370-1350 BCE; 1931
1931; 250 BCE
1370-1350 BCE; 1931
2000-1000
1972-3
2500 BCE
1880-120
1860-1820
1870-1850
1871-1830
1990-95
circa 3000 BCE
1853
2000 BCE
1853
1853
1832-1850
1853
1853
1853
1853