Lev Vygotsky Russian psychologist Lev Vygotsky was born in 1896, the same year as Piaget. He died in 1934 of tuberculosis. Recent decades have seen a resurgence of interest in Vygotsky’s theoretical writings, which emphasized the impact of social and cultural factors on cognitive development. According to Vygotsky, cognitive development always takes place within a social and cultural context.
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