In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. The Western Union Company - the American company, specialising on granting of services of monetary intermediary. Western Union was founded in 1851. The company is one of leaders in the market of the international remittances. In 1866, Sibley ordered the engineers to develop a Western Union telegraph system of stock quotes in real time. The Western Union Company is a leader in global payment services Sibley, the founder of Western Union, did not build a new telegraph lines, and persuaded the other players to join. American Telegraph Company, however, still had to buy it.