Another invention of Western Union - time synchronization. Each money transfer is protected with control number, that allows you to track and to ensure prompt payment of money specified by you person. Payment systems are one of basic elements of infrastructure of e-commerce. In 1879 Western Union left the telephone business after losing a lawsuit against Alexander Graham Bell - the patent holder on the phone. In the 1910-1920 years. Western Union is actively engaged in researching, innovating in the field of data transmission. Number of active holders of "Golden Card" of Western Union amounted to 9.5 million people worldwide.