The collection includes correspondence, memoranda, reports, proclamations, speeches, clippings, newspaper issues, maps, posters,
and photographs, relating to political and social conditions in Turkey during the Ottoman Empire and the early years of the
Turkish Republic, Turkish military activities during World War I, Turkish foreign relations, and ethnic minorities in Turkey.
The research materials collected by Hidayet Dağdeviren of Istanbul, Turkey, cover the last years of the Ottoman Empire and
the first years of the Republic of Turkey, and in particular documenting social organizations and minorities.