Colonial post rider looks like a caricature of Benjamin Franklin, not an unlikely association, since as a widely-traveled Postmaster General, he must have been synonymous with the office throughout the colonies. Post riders or postriders describes a horse and rider postal delivery system that existed at various times and various places throughout history. The term is usually reserved for instances where a network of regularly scheduled service was provided under some degree of central management by the State or State licensed monopoly. The United States Mail traces its roots to 1775 during the Second Continental Congress, where Benjamin Franklin was appointed the first postmaster general. The Post Office Department was created in 1792 from Franklin's operation, elevated to a cabinet-level department in 1872, and transformed in 1971 into the U.S. Postal Service as an agency of the U.S. government.