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. The Western Union Company - the American company, specialising on granting of services of monetary intermediary. Western Union was founded in 1851. The company is one of leaders in the market of the international remittances. In 2007 the company made 167.7 million transactions on money transfers between individuals and 404.6 million transactions between physical and legal persons. Western Union incomes for 2007 have made $4,9 billion US dollars, and the quantity of transactions has made 572 million. 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 -