Answer:
Mehmed II spread the religious tolerance in the country and allowed the people who escaped from the capital to return to it.
Step-by-step explanation:
After Mehmed conquered the city many of the inhabitants of the city left it. Among them were mostly Greeks and Italians, who had many trading colonies in the city. Mehmed restored the Patriarchy and allowed people to resettle in the capital. Once more, Constantinople became the largest city in Europe.