When it was first proposed in 1956 , in The Prehistory of Eastern Europe , Part 1 , Marija Gimbutas 's contribution to the search for Indo-European origins was a pioneering interdisciplinary synthesis of archaeology and linguistics .
When it was first suggested in 1956 , Marija Gimbutas 's answer to the question of Indo-European origins was a pioneering interdisciplinary synthesis of archaeology and linguistics .