From the Editor
The history of the spiritual culture of Russia is one of the most popular topics in the research of domestic and foreign humanities. In this issue, the main attention is traditionally paid to various types of written historical and literary sources on this topic, covering the period from the late Middle Ages and almost to the present day. We understand spiritual culture in its broadest interpretation – as various manifestations of the spiritual life of a person and society, including knowledge, ideas, worldview, beliefs, beliefs and embodied in various monuments of human activity. To cover all the components of spiritual culture in one issue of our magazine is an unaffordable task. The authors of the articles devoted their research to a narrower range of scientific problems, primarily related to the reflection of spiritual life in written monuments on the history of the Russian Orthodox Church of the 16th–20th centuries and Old Believers. But not only the problems of the history and culture of Russian Orthodoxy in their various variants and manifestations have become the subject of study in published articles. The results of the research of scientific materials of academic and government expeditions to Siberia in the 18th century, periodicals of the 20th century and the features of the reflection in it of various historical events and phenomena, the problems of mastering and scientific publication of the memoir heritage of the Decembrist movement are also presented. A significant place in the issue is devoted to the works of young scientists and graduate students. The articles offered to the reader are combined in this issue of the journal into the following thematic sections: “Sources on the history of the Russian Orthodox Church”, “Sources on the history of Old Believers”, “Materials of academic and government expeditions of the 18th century”, “Periodicals as a historical source”, “Memoir sources”.