Anzaldúa's account of the events leading up to the Treaty of Guadalupe Hidalgo--in which Mexico was effectively forced to cede more than half of its land to the U.S.--is generally accurate. These events are central to understanding the feelings of many Mexican-Americans (and also many North American Indians) that their historic homeland was usurped. But this chapter of U.S. history is little known to most people. See the treaty and a summary online at the Hispanic Reading Room of the Library of Congress. This map shows the area (in white) transferred from Mexico.