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Jean Piaget was one of the most influential psychologists and epistemologists of the 20th century.
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Jean Piaget was born in Switzerland in of a Swiss father (Arthur Piaget) and a French mother (Rebecca Jackson).
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Jean William Fritz Piaget born (9 August – 16 September ) was a Swiss developmental psychologist and philosopher known for his epistemological studies with .
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The Life of Jean Piaget.