The book, based on preserved sources, highlights the history of the Bulgarian-Chuvash city of Veda-Suar - Shupashkar - Cheboksary of the late XIII - mid XVI centuries, the Russian city of Cheboksary of the second half of the XVI - XVII centuries: its foundation and development, the role of a military fortress, administrative and trade and craft center, the life, service and activities of citizens, their life and culture.