Replica of the first Morse telegraph, 1835
1934
1934
2000-100 BCE
1913
1914
1914
1955; 1830
1914
1914
1914
1913
1990-96
circa 1913
1913
1934
1930 (replica); 1834 (original)
1913
1801-1892 (prepared); 1946 (element replaced)
1705-1737
1914
1914
1903 (original); 1982 (model)
1772 (original); 1919 (model)
1830 (original); 1967 (model)
4000-2001 BCE
1971-1900
1914
1913, 14 November
circa 1914
1914
1913
1914
2000-1350
1914
circa 1920; 1907
1914
1914
1972-3
1913
1913
1945-50
1914
1914
1990-95
1914
1914
1914
1914
1914
1914
1914