In 1920, Western Union has implemented the world's first transmission of images over the ocean. Leaving the idea of expansion into Europe, Western Union took up the expansion of services in the U.S. market. Separation of the companies had two objectives: first, to give Western Union the opportunity to develop more intensively, and secondly, to help First Data to return to its original activity (in 1992 the company separated from the payment system of American Express as an independent financial services company). July 3, 1884 the company's shares were included in the calculation base for the newly created stock index Dow Jones Transportation Average.