In the Western Union in the 30s of the 20th century worked 14 thousand couriers delivering telegrams. Another invention of Western Union - time synchronization. Payment systems are one of basic elements of infrastructure of e-commerce. 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.