Statistics for Largest Territorial Acquisitions of the United States

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Date	Area	Territorial Acquisition	Includes	% Correct
1803	827,987	Louisiana Purchase	Louisiana, Arkansas, Missouri, Iowa, Minnesota, Oklahoma, Kansas, Nebraska, South Dakota, North Dakota, Colorado, Wyoming, Montana, Florida	98%
1848	529,189	Mexican Cession	California, Nevada, Utah, Wyoming, Colorado, Arizona, New Mexico	93%
1867	591,000	Purchase of Alaska	Alaska	92%
1845	389,166	Annexation of Texas	Texas, New Mexico, Colorado, Oklahoma, Kansas, Wyoming	90%
1898	6,450	Annexation of Hawaiian Islands	Hawaii	83%
1783	892,135	Thirteen States	Delaware, Pennsylvania, New Jersey, Georgia, Connecticut, Massachusetts, Maryland, South Carolina, New Hampshire, Virginia, New York, North Carolina, Rhode Island, Vermont, Kentucky, Tennessee, Ohio, Indiana, Mississippi, Illinois, Alabama, Maine, Michigan, Wisconsin, Minnesota, West Virginia	82%
1846	286,541	Oregon Territory	Oregon, Washington, Idaho, Montana, Wyoming	77%
1819	72,101	Florida	Florida	73%
1898	3,508	Puerto Rico	Puerto Rico	72%
1854	29,670	Gadsden Purchase	Arizona, New Mexico	66%
1898	115,800	Purchase of Philippine Islands	The Philippines	53%
1818	46,194	British Cession	Minnesota, North Dakota, South Dakota	40%