UPS was founded in 1907 as a small messenger company in Seattle, Washington, by James E. Casey and his partner Claude Ryan. Initially named the American Messenger Company, it focused on delivering messages and packages within the city. Over the decades, UPS expanded its services, innovated in logistics, and grew into a multinational corporation, officially adopting the name United Parcel Service in 1919. Today, UPS is one of the largest package delivery companies in the world, serving millions of customers across various sectors.