Benjamin Franklin - Wikipedia

On July 26, 1775, the US Continental Congress created the United States Post Office (U.S.P.O.) in Philadelphia under Benjamin Franklin.

"Well known as a printer and publisher, Franklin was appointed postmaster of Philadelphia in 1737, holding the office until 1753, when he and publisher William Hunter were named deputy postmasters–general of British North America, the first to hold the office. (Joint appointments were standard at the time, for political reasons.) Franklin was responsible for the British colonies from Pennsylvania north and east, as far as the island of Newfoundland. A post office for local and outgoing mail had been established in Halifax, Nova Scotia, by local stationer Benjamin Leigh, on April 23, 1754, but service was irregular. Franklin opened the first post office to offer regular, monthly mail in what would later become Canada, at Halifax, on December 9, 1755. Meantime, Hunter became postal administrator in Williamsburg, Virginia and oversaw areas south of Annapolis, Maryland. Franklin reorganized the service's accounting system, then improved speed of delivery between Philadelphia, New York and Boston. By 1761, efficiencies led to the first profits for the colonial post office.[130]

When the lands of New France were ceded to the British under the Treaty of Paris in 1763, the new British province of Quebec was created among them, and Franklin saw mail service expanded between Montreal, Trois-Rivières, Quebec City, and New York. For the greater part of his appointment, Franklin lived in England (from 1757 to 1762, and again from 1764 to 1774)—about three-quarters of his term.[131] Eventually, his sympathies for the rebel cause in the American Revolution led to his dismissal on January 31, 1774.

On July 26, 1775, the Second Continental Congress established the United States Post Office and named Benjamin Franklin as the first United States Postmaster General. Franklin had been a postmaster for decades and was a natural choice for the position.[132] He had just returned from England and was appointed chairman of a Committee of Investigation to establish a postal system. The report of the Committee, providing for the appointment of a postmaster general for the 13 American colonies, was considered by the Continental Congress on July 25 and 26. On July 26, 1775, Franklin was appointed Postmaster General, the first appointed under the Continental Congress. It established a postal system that became the United States Post Office, a system that continues to operate today."