On February 20, 1792, President Washington formally created the U.S. Postal Service with the signing of the Postal Service Act, which outlined in detail Congressional power to establish official mail routes. The act allowed for newspapers to be included in mail deliveries and made it illegal for postal officials to open anyone's mail. In 1792, a young American nation of approximately 4 million people enjoyed federally funded postal services including 75 regional post offices and 2,400 miles of postal routes. The cost of sending a letter ranged from 6 cents to 12 cents. Under Washington, the Postal Service administration was headquartered in Philadelphia.
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