{ "item_title" : "Psychogenetic Development of Humankind", "item_author" : [" Georg Oesterdiekhoff "], "item_description" : "The book belongs to the lifelong project of the author to apply Piagetian theory to the understanding and explanation of the history of culture, sciences, philosophy, law, politics, religion, morals, and arts. It evidences that humankind went from the preoperational and the concrete operational to the formal operational stages, elaborating these data and facts whose existence Piaget himself had already surmised. The higher stages developed late in history, while the preoperational stage was more or less the modal stage in ancient or archaic humankind. From these research data emerges a new theory of the human being and of the psychogenetic development of humankind, a new theory of history and evolution. The new theory may be the most breathtaking and fundamental offshoot of Piagetian theory altogether. It shows more than any other approach the relevance of Piagetian theory to the study of history. ", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/1/03/647/339/1036473392_b.jpg", "price_data" : { "retail_price" : "134.95", "online_price" : "134.95", "our_price" : "134.95", "club_price" : "134.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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