| Release Date | February 26, 1957 | |
|---|---|---|
| Status | Released | |
| Original Title | Урок истории | |
| Runtime | 1h 26min | |
| Budget | — | |
| Revenue | — | |
| Language | Bulgarian, Russian | |
| Original Language | Bulgarian | |
| Production Countries | Bulgaria, Soviet Union | |
| Production Companies | Boyana FilmBulgarofilmMosfilm | |