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Anthropology (study of people) - Archaeology (history of civilization) - Geography - Education - History - Language - Philosophy (abstract ideas) - Psychology - Sociology - Teaching
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Algebra - Astronomy (stars and space) - Biology (animals and plants) - Chemistry - Computer science - Earth science - Ecology - Geometry - Mathematics - Physics - Statistics - Zoology (study of animals)
Copyright - Defense - Economics (trade and business) - Government - Human rights - Laws - Military - Politics - Trade
Atheism - Bahá'í - Buddhism - Christianity - Esotericism - Hinduism - Islam - Jainism - Judaism - Mythology - Paganism - Sect - Sikhism - Taoism - Theology