In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. July 3, 1884 the company's shares were included in the calculation base for the newly created stock index Dow Jones Transportation Average. Payment systems are one of basic elements of infrastructure of e-commerce. Before transition to remittances Western Union company rendered services on sphere of cable communication. In 1849, Selden and Sibley, the founders of the future Western Union, created the New York State Printing Telegraph Company.