In the Western Union in the 30s of the 20th century worked 14 thousand couriers delivering telegrams. In 1877, starting from September, New York City residents began to have the opportunity to check the time on clock with the "time ball", located on the roof of constructed in the same year a new corporate headquarters - Western Union Building. July 3, 1884 the company's shares were included in the calculation base for the newly created stock index Dow Jones Transportation Average. Thanks to cooperation with Western Union the Associated Press at the end of the XIX century took almost monopolistic position in the U.S. market news. Western Union made so that the time in all of American civil services was the same.