Most of us have probably read or heard some version of the postman's creed but according to the U.S. Postal Service, the organization has no official creed or motto. The United States Post Office was founded by the Second Continental Congress in Philadelphia on June 26, 1775, at the start of the American Revolution but it was not until around 1914 when an architectural firm in New York City, popularized the motto when they inscribed the words “Neither rain, nor snow, nor sleet, nor hail, nor armed villains deterred this hardy courier” on the exterior walls of the New York City Post Office.