In 1920, Western Union has implemented the world's first transmission of images over the ocean. In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. In 1933, by the Western Union Company were invented "singing telegrams". On the market was placed about 765 million of ordinary shares of the company. On the first day trading on the exchange the company's shares rose by 3.3% and the cost was $ 19.96. In the 1910-1920 years. Western Union is actively engaged in researching, innovating in the field of data transmission.