Western Union has taken of 451st position in the rating Fortune 500 in 2009, having moved from 473rd line in 2008. In the early forties of the 20th century, Western Union has used the first time a commercial intercity microwave transmission system. Another invention of Western Union - time synchronization. 1970 - a new service called In October 1871 the company Western Union began to provide money transfer services, drawing on its own extensive telegraph network. Western Union made so that the time in all of American civil services was the same.