A former colleague shot Scott Walensky, 41, Ernie Spruill, 56, Robert S. Leslie, 37, George Lomaga, 59, and Dave Grossman, 45, in the head at the rear of the post…

On July 26, 1775, about three months after the first clash between American Colonists and British soldiers in Massachusetts, Colonial leaders established a postal system and named Benjamin Franklin its…

The Post Office Act helped spread commerce and civic associations that were the lifeblood of the nation in the early 19th century.

The latest government agency that President Donald Trump wants to disrupt is older than America itself.

The Postal Service has published biographies of two former postmasters general — Joseph Habersham, who served from 1795 to 1801, and John A.J. Creswell, who served from 1869 to 1874.

U.S. Postal Service history is deeply entwined with America’s story. From our beginning, we’ve played a pivotal role in some of the most significant chapters of our country’s growth, binding…

For years, customers had requested that the Post Office Department issue a Christmas-themed stamp. On Nov. 1, 1962, their holiday wish was granted

The concept of ZIP codes, from the acronym Zone Improvement Plan, originated in the 1940s. Beginning in 1943, the Postal Service divided larger cities into two-digit postal zones.

The 1864 presidential election was the first time absentee voting was exercised at scale: Approximately 7.5 percent of the total vote was cast from the field or by proxy.

The 6888th Central Postal Directory Battalion contributed to the war effort in a unique way: by sorting through a three-year backlog of mail (17 million pieces of it!) that hadn’t…