"A new empire was born with the conquest of Istanbul by Mehmed II, and Mehmed II, in a way, became the founder of the Ottoman Empire by conquering Istanbul. Therefore, the conquest, which is a turning point, holds great importance for Turkish history," Emecen said.
Emecen noted that the conquest of Istanbul led to a perception of threat mixed with fear in the Western world.
After the conquest, calls for the establishment of a new Crusader army began to be made in the Western world, he added.
The conquest was met with elation in the Muslim world, except for the Mamluk administration, Emecen said, adding that it was also mostly welcomed in Turkish Anatolia, except for the Karamanids.