In 1920, Western Union has implemented the world's first transmission of images over the ocean. 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. In 1884 Western Union has become a joint-stock company and was brought to the stock exchange. The company has entered in the first American stock index Dow Jones.