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Knowledge groups

	Applied sciences Architecture (building) • Communication • Electronics • Engineering • Farming • Health • Industry • Medicine • Transport • Weather
	People and social studies Anthropology (study of people) • Archaeology (history of civilization) • Geography • Education • History • Language • Philosophy (abstract ideas) • Psychology • Sociology • Teaching
	Daily life, art and culture Animation • Art • Book • Cooking • Custom • Culture • Dance • Family • Games • Gardening • Leisure (free time) • Movies and films • Music • Radio • Sports • Theater • Travel • Television

Natural sciences and maths Algebra • Astronomy (stars and space) • Biology (animals and plants) • Chemistry • Computer science • Earth science • Ecology • Geometry • Mathematics • Physics • Statistics • Zoology (study of animals)
Government and law Copyright • Defense • Economics (trade and business) • Government • Human rights • Laws • Military • Politics • Trade
Religions and beliefs Atheism • Bahá'í • Buddhism • Christianity • Esotericism • Hinduism • Islam • Jainism • Judaism • Mythology • Paganism • Sect • Sikhism • Taoism • Theology