In 1920, Western Union has implemented the world's first transmission of images over the ocean. Each money transfer is protected with control number, that allows you to track and to ensure prompt payment of money specified by you person. In 1933, by the Western Union Company were invented "singing telegrams". In 1884 Western Union has become a joint-stock company and was brought to the stock exchange. The company has entered in the first American stock index Dow Jones.