Replica of the first Morse telegraph, 1835
1934
1934
2000-100 BCE
1893-4
1867
1867
1867
1955; 1830
1990-96
1867
1930 (replica); 1834 (original)
1775-1799 (original); 1900-1907 (model)
4000-2001 BCE
1934
1888
1839 (original); circa 1988 (replica)
1705-1737
1870-1877
1868
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1830 (original); 1967 (model)
1867
1825; 1910
1867
30 CE
30 CE
2686-2613 BCE
1859; 1986
1888-185
1945-50
1824 (original); 1891 (model)
1867
1370-1350 BCE; 1931
1931; 250 BCE
1370-1350 BCE; 1931
2000-1000
100 BCE-300 CE; 1890-1920
1867
1972-3
2500 BCE
1880-120
1886-1866
1870-1850
1871-1830
1990-95
1867
circa 3000 BCE
1867
2000 BCE
1867