In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. One of the common kinds of money transfer is a transfer via the international system of Western Union. 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 2000 was launched the Web site westernunion.com, with which users from certain countries can independently transfer funds online. In the 1910-1920 years. Western Union is actively engaged in researching, innovating in the field of data transmission.