The 48 states and beyond -- The addition of two more states -- The Spanish-American War -- U.S. Trust Territory of the Pacific Islands.
Summary:
Learn about the territorial acquisitions of the United States, including areas that were part of the United States at one time but which have since been ceded to other countries.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.