During the National Struggle Period, the 4 September Sivas Congress gathered in this building, the foundations of our Republic were laid here, the founder of our Republic, Gazi Mustafa Kemal ATATÜRK and his friends, were guests here for exactly 108 days between September 2 and December 18, 1919, and the building was used as the “National Struggle Headquarters” in the most difficult days of our nation. has served.