Influenced by the materialist concept of history, Tadashi ISHIMODA and others positioned the bushi as the reformer who pushed out the ancient governing class such as the aristocrats and religious power of influence and brought on the medieval times.
唯物史観の影響を受け、武士は古代支配階級である貴族や宗教勢力を排除し、中世をもたらした変革者として石母田正らによって位置づけられた。