United States Postal Service
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![~ Benjamin Franklin ~ George Washington ~The First U.S. Postage StampsIssued 1847The first stamp issues were authorized by an act of Congress and approved on March 3, 1847.[22] The earliest known use of the Franklin 5¢ is July 7, 1847, while the earliest known use of the Washington 10¢ is July 2, 1847. Remaining in postal circulation for only a few years, these issues were declared invalid for postage on July 1, 1851.[23]](/uploads/202501/11/First_US_Stamps_1847_Issue4102.jpg)
The United States Postal Service, also known as the Post Office, U.S. Mail, or Postal Service, often abbreviated as USPS, is a government agency responsible for providing postal service in the United States. It is one of the few government agencies explicitly authorized by the United States Constitution.