In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. In 1877, starting from September, New York City residents began to have the opportunity to check the time on clock with the "time ball", located on the roof of constructed in the same year a new corporate headquarters - Western Union Building. In the 80's of Nineteenth century, Western Union was repeatedly tried capture by the railroad tycoon Jay Gould. He worked with Alexander Graham Bell, inventor of the first phone. One of the common kinds of money transfer is a transfer via the international system of Western Union. In 1914 Western Union engineers invented the first payment card - a prototype of the modern credit card. Western Union made so that the time in all of American civil services was the same. Western Union made so that the time in all of American civil services was the same.