The Ottoman Sultanate (1299-1922 as an empire; 1922-1924 as caliphate only), also referred to as the Ottoman Empire, written in Turkish as Osmanlı Devleti, was a Turkic imperial state that was conceived by and named after Osman (l. https://www.worldhistory.org/Ottoman_Empire/ #History #Crusades #IslamicCaliphates #MehmedII