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1550 BCE
The Ebers Papyrus mentioned depression and thought disorders.
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600 BCE
Many cities in Greece had temples to Asklepios that provided cures for psychosomatic illnesses.
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500 BCE
Suggested theory of humors as regulating human behavior
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470 BCE
Socrates
Socrates has been called the father of western philosophy, if only via his influence on Plato and Aristotle. Socrates made a major contribution to pedagogy via his dialectical method and to epistemology via his definition of true knowledge as true belief buttressed by some rational justification.