Postal Service through the years
Published: Feb 06 2013 11:05:34 AM EST Updated On: May 01 2013 12:35:15 PM EDT
Patrick Donahoe, postmaster general of the struggling United States Postal Service, "has decided to retire" in February after serving 39 years at the agency, the USPS announced Friday. Check out landmark moments in U.S. Postal Service history.