The early heroes of the movement—Rodolfo Gonzales in Denver and Reies Tijerina in New Mexico—adopted a historical account of the preceding hundred and twenty-five years that had obscured much of Mexican-American history. Gonzales and Tijerina embraced a nationalism that identified the failure of the United States government to live up to its promises in the Treaty of Guadalupe Hidalgo. In that account, Mexican Americans were a conquered people who simply needed to reclaim their birthright and cultural heritage as part of a new nation, which later became known as Aztlán.