After that, movement towards freedom of speech became popular again in historical studies as the Taisho Democracy became more popular, some historical books about Marxism based upon historical materialism were published, there was more strict control as the socialist movement became more popular.
その後大正デモクラシーの高まりを受けて歴史学にも再び自由な言論が活発になり、マルクス主義の唯物史観に基づく歴史書も出版されたが、社会主義運動の高まりと共に統制も強化された。