Postal Service through the years
POSTED: 08:05 AM PST Feb 06, 2013 UPDATED: 09:35 AM PDT May 01, 2013
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.