In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. 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 1914 Western Union engineers invented the first payment card - a prototype of the modern credit card. Western Union incomes for 2007 have made $4,9 billion US dollars, and the quantity of transactions has made 572 million. In 2000 was launched the Web site westernunion.com, with which users from certain countries can independently transfer funds online.