In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. In the 30's of the twentieth century, Western Union has become the world's largest telegraph company. Leaving the idea of expansion into Europe, Western Union took up the expansion of services in the U.S. market. July 3, 1884 the company's shares were included in the calculation base for the newly created stock index Dow Jones Transportation Average. By 1861 Western Union telegraph lines entangled the whole America. It's time to explore Europe. In the summer of 1990 top managers of the Western Union Company spent day and night in the main office in Englewood (Colorado, USA). They needed to meet the challenge: to save the Western Union from bankruptcy, paying off the debts of the company millions of dollars. Western Union made so that the time in all of American civil services was the same.