The United States Postal Service (USPS) is an independent agency of the federal government responsible for providing postal services across the United States. It generates revenue primarily through the sale of postage, products, and services, including mail delivery, shipping, and retail services. Established in 1775, USPS has a rich history, evolving from a crucial communication network in early America to a modern logistics and delivery service. The agency plays a vital role in connecting communities and businesses nationwide, adapting to technological advancements and changing consumer needs.