In the Western Union in the 30s of the 20th century worked 14 thousand couriers delivering telegrams. In 1860 the U.S. Congress arranged among the telegraph companies a competition to create a national line. The winner was Western Union. In the early 60s Western Union has put into operation transcontinental microwave system of data transmission via radio waves, completely replacing the web of telegraph poles and wires. In 1933, by the Western Union Company were invented "singing telegrams".