Western Union has taken of 451st position in the rating Fortune 500 in 2009, having moved from 473rd line in 2008. Another invention of Western Union - time synchronization. In October 2006 the company made an initial public offering of shares on the New York Stock Exchange, becoming independent from First Data company. Payment systems are one of basic elements of infrastructure of e-commerce. The first offices of company were located in the Reynolds Arcade building in Rochester, New York. The sign above the main entrance to the building -