- In 1921 Macierz Szkolna (Alma Mater), a cultural association, was established.
- On the initiative of the Macierz Szkolna association, a school for Polish youth was established. It was funded by the Polish society.
- It was the only Polish gymnasium in the Free City of Gdańsk.
- The school operated in the years 1922-1939.
- Some students did not speak fluent Polish, therefore learning Polish was especially important.
- Jan Augustyński became the school headmaster. A lot of the teachers were active in the field of journalism. Education at the Polish Gymnasium was offered at a high level.
- Two painters, Bolesław Cybis and Jan Zamoyski, painted a fresco on the auditorium ceiling. It was entitled The Polish Sky. During the war, the Nazis destroyed the fresco and covered the ceiling with plaster.
- After the war, the building accommodated various education institutions, including the first cinema in Gdańsk.
- At present, the building is the property of the Marshal Office of the Pomorskie Province.
- In the years 2017-2018, the fresco was reconstructed. The auditorium where it is possible to admire the fresco on the ceiling is open for visitors.
Memories and stories told by the inhabitants
- The school offered a flat for its employees, where a Polish writer, Stanisława Przybyszewska, once used to live with her husband, who was a teacher of the Polish Gymnasium. After her husband’s death, Przybyszewska moved to a wooden shed located at the school courtyard. Despite a lot of effort, she did not get a job at school. To get some money, she had to pawn her possessions at a nearby pawnshop.
- After the war, the building was converted into a cinema, where it was possible to watch such movies as Zakazane piosenki (Forbidden Songs). The boys from the neighbourhood used to sell cigarettes and chewing gum in front of the cinema.
⯆ The building of the former Polish Gymnasium.
⯆ After the war there was a cinema here.
⯆ A stone commemorating Stanisława Przybyszewska, a Polish writer.
⯆ The Polish Sky fresco reconstructed on the ceiling of the auditorium at the former Polish Gymnasium.
⯆ A plaque commemorating the founders, teachers and students of the Polish Gymnasium.
⯆ A post-war photograph of the former Polish Gymnasium.