The schoolboy calendar - in the 80s of the 20th century in the Soviet Union - is an annual almanac for schoolchildren, containing various games and puzzles , literary works, popular science articles and discussions of ethical and modern issues.
Possibly, he was focused on the growing up audience, that is, from year to year, the nature of its content changed (towards increasing the age of the target audience ), whereas within one edition its content was designed for schoolchildren of the same age.
The Schoolboy Calendar is one of a series of weeklies built on the same principle (“ calendars ”) and produced in parallel.