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. In 1866, Sibley ordered the engineers to develop a Western Union telegraph system of stock quotes in real time. In the 80's of Nineteenth century, Western Union was repeatedly tried capture by the railroad tycoon Jay Gould. He worked with Alexander Graham Bell, inventor of the first phone. In the early 60s Western Union has put into operation transcontinental microwave system of data transmission via radio waves, completely replacing the web of telegraph poles and wires. In 1914 Western Union engineers invented the first payment card - a prototype of the modern credit card. Before transition to remittances Western Union company rendered services on sphere of cable communication. Number of active holders of "Golden Card" of Western Union amounted to 9.5 million people worldwide. Western Union made so that the time in all of American civil services was the same.