Genre
History, Study and teaching, Indians of North America, Historiography, Education, Textbooks, Racism in textbooks, Thanksgiving Day, Beeldvorming, Geschiedvervalsing, Thanksgiving Day in textbooks, Geschiedenisonderwijs, Geschiedschrijving, Indians of North America in textbooks, Native Americans, Geschichtsunterricht, Geschichtsklitterung, United states, history, sources, United states, historiography, United states, history, textbooks, Indians of north america, study and teaching,