In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. Most service points of Western Union work in the time convenient for customers throughout the week and throughout the year. In the early 60s Western Union has put into operation transcontinental microwave system of data transmission via radio waves, completely replacing the web of telegraph poles and wires. One of the common kinds of money transfer is a transfer via the international system of Western Union. In 1879 Western Union left the telephone business after losing a lawsuit against Alexander Graham Bell - the patent holder on the phone. The Western Union Company is a financial services and communications company based in the United States. Western Union made so that the time in all of American civil services was the same.