In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. Western Union offers one of the easiest ways for families and friends to send money and stay connected almost anywhere in the world. Most service points of Western Union work in the time convenient for customers throughout the week and throughout the year. 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. Western Union made so that the time in all of American civil services was the same.