Replica of the first Morse telegraph, 1835
1934
1934
1955; 1830
2000-100 BCE
1893-4
1775-1799 (original); 1900-1907 (model)
1990-96
1705-1737
1772 (original); 1919 (model)
1930 (replica); 1834 (original)
4000-2001 BCE
1830 (original); 1967 (model)
1730; 1967
1972-3
2500 BCE
1880-120
1915-1825
1990-95
1901-950
1800-1830
1800-1830
1945-50
3000-1500
3000-2000 BCE
1834-1836
2000 BCE
30 CE
30 CE
circa 3000 BCE
1825; 1910
2686-2613 BCE
1824 (original); 1891 (model)
20-400
2000-1350
1-79 CE; before 1914
2000-1350
2000-1350
2000-1350
2000-1350
1370-1350 BCE; 1931
1931; 250 BCE
2000-1350
20-500
1370-1350 BCE; 1931
1-79 CE; before 1914
2000-1350
2000-1350
2000-1350
20-500
2000-1350
20-400