Most service points of Western Union work in the time convenient for customers throughout the week and throughout the year. July 3, 1884 the company's shares were included in the calculation base for the newly created stock index Dow Jones Transportation Average. In 1914 Western Union engineers invented the first payment card - a prototype of the modern credit card. Sibley, the founder of Western Union, did not build a new telegraph lines, and persuaded the other players to join. American Telegraph Company, however, still had to buy it. Western Union for more than 130 years provides money transfer services to its customers.