For example, women were serving in important postal roles more than a century before they could vote. In 1775, Mary Katherine Goddard became the first known female postmaster, and the…

When the U.S. Post Office opened its domestic parcel post program in 1913, the novelty was far beyond what Amazon wrought.

The Marion, OH, Post Office recently celebrated the 100th anniversary of the first-day cover and the stamp-collecting activity it sparked.