Replica of the first Morse telegraph, 1835
1934
1934
2000-100 BCE
1872 (original); 1909 (model)
1955; 1830
1990-96
1934
1930 (replica); 1834 (original)
1801-1892 (prepared); 1946 (element replaced)
1705-1737
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1830 (original); 1967 (model)
4000-2001 BCE
1908-1900
1901-1900
1971-1900
2000-1350
1972-3
1945-50
1990-95
30 CE
30 CE
1859; 1986
3500-1000
1970-1900
2686-2613 BCE
1965-1900
15/7/27
15/7/27
1915-1825
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
2000-1350
20-500
20-400
20-500
2000-1350
2000-1000
700-100 BCE; 1930-1950
1901-950
1370-1350 BCE; 1931
1370-1350 BCE; 1931
1931; 250 BCE