In 2005, Turkish nationalists attacked a photography exhibition dedicated to the fiftieth anniversary of the 1955 riots held in İstanbul. The exhibition itself was initially heralded as a major step forward for the development of democratic values in preparation of Turkey's admittance into the European Union. The military prosecutor at the time of the riots, vice admiral Fahri Çoker, kept documents and approximately 250 photographs of the events in order to educate posterity. He entrusted them to the Turkish Historical Society, stipulating that they be exhibited 25 years after his death.