What helped medieval islam make major advances

What helped Islam spread so quickly? I guess it kinda like your question

Explanation:

Muslim conquests following Muhammad's death led to the creation of the caliphates, occupying a vast geographical area; conversion to Islam was boosted by missionary activities, particularly those of imams, who intermingled with local populations to propagate the religious teachings. And I think that is how it spreads if any of that makes any sense!

first it was savannah, then it was augusta, louisville, milledgeville, then atlanta.

i live in georgia.

-seth