This question involved the historical and cultural background of the Soviet Union and Russia in the 20th century, as well as the influence of novel creation. During the Soviet era, literature was regarded as a form of national culture. Due to the Soviet government's strong control over literature, literature was regarded as an "official" form of culture. On the other hand, Russian literature was also very important during the Soviet period because Russia was once the main national and cultural heritage of the Soviet Union. So many Russians. The importance of Russian culture in some novels or in the historical context of the Soviet era was more recognized and valued. In this case, their works might be more related to Russian culture and history, or the importance of Russian culture in the historical context of the Soviet era would be more recognized and valued. Therefore, some of the novels were about the Soviet Union and Russia's historical and cultural background in the 20th century, as well as their influence on the creation of novels.