In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. Another invention of Western Union - time synchronization. One of the common kinds of money transfer is a transfer via the international system of Western Union. Western Union incomes for 2007 have made $4,9 billion US dollars, and the quantity of transactions has made 572 million. Western Union made so that the time in all of American civil services was the same.