In 1988, the company undertook a massive reorganization in response to rapidly changing business conditions. In particular, this need has arisen due to many technological changes that have taken place at that time. Company name was changed from Western Union Telegraph Co. to Western Union Corp. In the Western Union in the 30s of the 20th century worked 14 thousand couriers delivering telegrams. 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. Thanks to cooperation with Western Union the Associated Press at the end of the XIX century took almost monopolistic position in the U.S. market news. In 1884 Western Union has become a joint-stock company and was brought to the stock exchange. The company has entered in the first American stock index Dow Jones.