On October 1, 1885, the Special Delivery service was first available and the first stamp, US #E1, went on sale. The service provided the immediate delivery of a letter within one mile of any other Special Delivery post office.
On July 12, 1922, the US Post Office Department issued its first stamp with an announced first day of issue. Prior to this event, the Post Office Department didn’t usually designate specific dates for the issue of new stamps.
On July 6, 1894, a San Francisco businessman operated a short-lived bicycle mail route in San Francisco, complete with his own stamps.
On June 8, 1959, the US Post Office Department launched its experimental missile mail in an attempt to find a faster method of mail delivery.
On May 25, 1967, the Canada Centennial stamp was issued in Montreal – the first time a US stamp had a First Day ceremony in another country.
On May 15, 1918, America’s airmail service began when two Curtiss Jennys departed New York and Washington, DC. In the months that followed, pioneering aviators expanded airmail service over the treacherous Allegheny Mountains to Chicago and eventually the west coast.
On March 12, 1888, a short-lived blizzard mail service delivered letters to New York City during one of the worst storms in history.
On January 28, 2013, the USPS issued the first stamp in its Global Forever Series. These stamps were created to simplify sending international mail.
On October 20, 1960, America’s first automated post office opened in Providence, Rhode Island. Issued that same day, this stamp was so popular it inspired the Post Office to continue producing stamps with postal themes.