A map from 1922 of the United States showing the acquisition of territory from 1783 to the purchase of the Dutch West Indies (Virgin Islands) in 1917. This map is color-coded to show each of the acquisitions with map notations giving dates and where applicable, purchase amounts, including the purchase of Alaska in 1867, the annexation of Hawaii in 1898, Philippine Islands and Puerto Rico ceded by Spain in 1898, and the purchase of the Virgin Island from the Dutch in 1917.