The classroom (inside the ‘Atatürk Kongre ve Etnografya Müzesi’) where the Turkish National Mouvement gathered 4–11 September 1919 and confirmed Atatürk's position as chair of the executive committee of the national resistance. The building was a school at the time.
Correspondent: J.M.Criel, Antwerpen.
Source: (amongst others) Vikipedia / Wikipedia.