Photograph of Air Mail Display in Manteca, California (Local ID: 28-MS-3B-5) This week marks the 250th anniversary of the founding of the United States Postal Service (USPS), which the Second Continental Congress established on July 26, 1775. The service was formalized as the United States Post Office Department (POD) through the Postal Service Act of … Continue reading Special Delivery! – 250 Years of the United States Postal Service
