In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. Each money transfer is protected with control number, that allows you to track and to ensure prompt payment of money specified by you person. Money transfer is a matter of minutes, at any distance. 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.