The book is the most complete calendar-diary of St. Petersburg history. It contains over one and a half thousand memorable dates from 1703 to 1998, most of which are provided with comments. The book is a revision of the reference book "Urban Month," published in 1993. Designed for a wide range of readers interested in the history of St. Petersburg - including schoolchildren studying the course of history and culture of St. Petersburg. For ease of use, the book has auxiliary pointers.