In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. Another invention of Western Union - time synchronization. The size of the commission fee for the transfer is charged according to the Western Union tariffs and depends on the amount of money sent. In October 2006 the company made an initial public offering of shares on the New York Stock Exchange, becoming independent from First Data company. 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. In the 1910-1920 years. Western Union is actively engaged in researching, innovating in the field of data transmission.