The establishment of Muslim states was announced to all border states and principalities with a sermon after Friday prayers. The establishment of the Ottoman State was announced to the whole world with a sermon from the Karacaşehir Mosque in the village of Karacaşehir, which is still in existence today and is affiliated with the Odunpazarı district.

This card has been prepared by SAKİN OKUL DERNEĞİ with the support of the European Union within the scope of the European Union Civil Think Program. The responsibility of the content belongs entirely to Sakin School Education Culture and Art Association and does not reflect the views of the EU.