In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. By 1861 Western Union telegraph lines entangled the whole America. It's time to explore Europe. In 1914 Western Union engineers invented the first payment card - a prototype of the modern credit card. The Western Union Company uses the most up to date technologies and its unique worldwide computer network that allows to carry out quick money transfers payments in more than 190 countries around the world. In the 1910-1920 years. Western Union is actively engaged in researching, innovating in the field of data transmission.