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. America was on the verge of civil war and needed a reliable connection between the North and South. On the telegraph market of the USA at this time were operated with six large companies: American Telegraph Company, New York Albany and Buffalo Electro-Magnetic Telegraph Company, Atlantic and Ohio Telegraph, Illinois & Mississippi Telegraph Company, New Orleans & Ohio Telegraph Company, and the brainchild of Sibley & Co. - The Western Union Telegraph. 1980 - for the first time in the history of Western Union revenues from money transfers exceeded the income from the telegraph service. In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. You do not need to open a bank account, so you can send or receive money in any of the 170 000 service points of Western Union around the world. In October 1871 the company has implemented the world's first telegraph money order. After a century money transfers have become a major source of income for Western Union.