In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. Payment systems are one of basic elements of infrastructure of e-commerce. The Western Union Company is a leader in global payment services The first offices of company were located in the Reynolds Arcade building in Rochester, New York. The sign above the main entrance to the building - 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. Western Union made so that the time in all of American civil services was the same.