Why did Islam spread so quickly?

Why did Islam spread so quickly? There are many reasons why Islam spread so quickly. First Mecca was connected to many global trade routes. Another important reason was their military conquered lots of territory. A third factor was the Muslims fair treatment of conquered peoples.

There are many reasons why Islam spread so quickly. First Mecca was connected to many global trade routes. Another important reason was their military conquered lots of territory. A third factor was the Muslims fair treatment of conquered peoples.