This special bi-weekly blog series features selected excerpts from the U.S. Postal Service’s Publication 100: The United States Postal Service—An American History, 250th Anniversary Edition. Through these posts, readers will explore the dynamic evolution of the Postal Service—from its expanding delivery network and growing array of services to its trailblazing technological innovations and proud legacy of workforce diversity. Together, these stories highlight the institution’s enduring commitment to serving the American people. A free digital copy of Publication 100 is available at: about.usps.com/publications/pub100.pdf.
The National Postal Museum extends its sincere thanks to U.S. Postal Service historian Stephen Kochersperger for his valuable collaboration on this series.


