1980 - for the first time in the history of Western Union revenues from money transfers exceeded the income from the telegraph service. In 1920, Western Union has implemented the world's first transmission of images over the ocean. In the early 60s Western Union has put into operation transcontinental microwave system of data transmission via radio waves, completely replacing the web of telegraph poles and wires. In 1914 Western Union engineers invented the first payment card - a prototype of the modern credit card. 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.