In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. In 1991, Western Union has sold some low-profit division of the company AT & T, GM Hughes Electronics, and to some others. In the same year the company changed its name to New Valley Corp. In 1856, in 7 years after the foundation of New York State Printing Telegraph Company, the company changed its name to Western Union Telegraph Company. Western Union made so that the time in all of American civil services was the same.