Territories of the United States are one type of political division of the United States, administered by the U.S. government but not any part of a U.S. state. These territories were created to govern newly acquired land while the borders of the United States were still evolving. Territories can be classified by whether they are incorporated (part of the United States proper) and whether they have an organized government (through an Organic Act passed by the U.S. Congress). The organized incorporated territories of the United States existed from 1789 to 1959, through which 31 territories applied for and won statehood. The U.S. had no unincorporated territories (also called "overseas possessions" or "insular areas") until 1898, but continues to control several of them today.