sentences:  Amino began his career researching the lifestyles of out-of-the way villagers and marginalized non-urbanized Japanese.His scrupulous examination of primary sources enabled him to reconstruct the outlooks of a variety of non-agrarian peasant communities that shared little in common with the image of "the Japanese" constructed by scholarship and nationalist historians.He arrived at the conclusion that medieval Japan was neither a single culturally nor socially integrated state, but rather a mosaic of quite distinct societies, some of which knew nothing, for example, about the Japanese emperor.