In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. 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 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. In 1933, by the Western Union Company were invented "singing telegrams". Number of active holders of "Golden Card" of Western Union amounted to 9.5 million people worldwide.