In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. The presence of Western Union Gold Card at the client greatly simplifies the process of further processing of money transfers of and reduces the operation time for the sending of money, as the "Gold Card" is a carrier of the personal information about the client. In 1920, Western Union has implemented the world's first transmission of images over the ocean. Another invention of Western Union - time synchronization. Payment systems are one of basic elements of infrastructure of e-commerce. Gold Card Loyalty Program Western Union