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 April 1851 companions registered in Albany New York and Mississippi Valley Printing Telegraph Company (NYMVPTC), which included founded two years before New York State Printing Telegraph Company. In 1995, First Financial Management was acquired by First Data Corp. (the deal amounted to $ 7 billion), and Western Union Financial Services became a subsidiary of First Data. July 3, 1884 the company's shares were included in the calculation base for the newly created stock index Dow Jones Transportation Average.