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. Most service points of Western Union work in the time convenient for customers throughout the week and throughout the year. In 1995, First Financial Management was acquired by First Data Corp. (the deal amounted to $ 7 billion), and Western Union Financial Services became a subsidiary of First Data. In October 2006 the company made an initial public offering of shares on the New York Stock Exchange, becoming independent from First Data company. 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. Western Union incomes for 2007 have made $4,9 billion US dollars, and the quantity of transactions has made 572 million.