Initially post-processualism was primarily a reaction to and critique of processual archaeology, a paradigm developed in the 1960s by 'New Archaeologists' such as Lewis Binford, and which had become dominant in Anglophone archaeology by the 1970s.
Lewis Roberts Binford was an American archaeologist known for his influential work in archaeological theory, ethnoarchaeology and the Paleolithic period.
Archaeologists working in the 1960s, such as Lewis Binford, developed the theory of New Archaeology, which tries to understand the forces that cause cultural change. New Archaeology is also known as Processual Archaeology.
Processual archaeology was an intellectual movement of the 1960s, known then as the "new archaeology.
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