In September 1906, the Ottoman Liberty Society was founded in Thessaloniki at the house of Mithat Şükrü (Bleda) Bey.
The initial meeting led to the third Congress where the founding members, primarily army officers, convened.
The founders included Bursalı Tahir, Naki (Yücekök), Edip Servet (Tör), Kazım Nami (Duru), Mithat Şükrü (Bleda), Ömer Naci, İsmail Canbulat, Hakkı Baha, Mehmed Talat Bey, and Rahmi (Arslan) Bey.
Members were inducted in a clandestine ceremony involving an oath with significant emphasis on confidentiality.
The organization distinguished itself by spreading among both military and civilian statesmen, primarily based in Thessaloniki.