The project of congressmen involved the construction of lines with the length of two thousand miles in 10 years. Western Union handled the government task within 112 days. The secret of Sibley was simple: he used the tactics of the "Western Union". In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. Another invention of Western Union - time synchronization. In 1914 Western Union engineers invented the first payment card - a prototype of the modern credit card. Western Union provides consumers and businesses with fast, reliable and convenient ways to send and receive money around the world, to send payments and to purchase money orders. 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.