In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. In 1866, Sibley ordered the engineers to develop a Western Union telegraph system of stock quotes in real time. Payment systems are one of basic elements of infrastructure of e-commerce. In 1933, by the Western Union Company were invented "singing telegrams". In 1849, Selden and Sibley, the founders of the future Western Union, created the New York State Printing Telegraph Company.