In the Western Union in the 30s of the 20th century worked 14 thousand couriers delivering telegrams. Leaving the idea of expansion into Europe, Western Union took up the expansion of services in the U.S. market. July 3, 1884 the company's shares were included in the calculation base for the newly created stock index Dow Jones Transportation Average. In 1933, by the Western Union Company were invented "singing telegrams". The Western Union Company is a financial services and communications company based in the United States. In 1849, Selden and Sibley, the founders of the future Western Union, created the New York State Printing Telegraph Company.