Why Did Islam Spread So Quickly

“You have surrendered your land to us. Now you have a choice: convert to Islam or join the Pact and continue practicing your own religion!” I overheard a soldier talking to the leader of my tribe. Would he convert to Islam or enter the Pact, pay the jizyah and stay a Christian? Part of the reason Islam spread so quickly was because the conquered people liked the Muslim beliefs and the way they ruled. (With consideration to other religions) Other reasons for the rapid spread of Islam were trade and Jihad. (religious war)
Mecca was the birthplace of Islam; it was the center/ capital of the religion. According to “Great Ages of Man: Early Islam”, “Mecca was prosperous and important… it was at the crossroads of the lucrative caravan trade.” Trade greatly attributed to the dispersion of Islam because it passed the ideals and beliefs of Islam to other people, who then extended those ideas to other parts of the world. Also, trade was very important, hence lucrative meaning profitable. I can conclude that because there was so much trade, the teachings of Islam spread quickly and
A contributing factor to the accelerated diffusion of Islam was conquest. Due to rules in the Qur’an, Muslims were not allowed to attack fellow Muslims, so in order to gain resources, Muslims would band together and defeat others, gaining both the resources they need, and the land that the people lived on. The hastily growing Muslim tribes attacked the groups that did not convert, so most non-Muslim populations were easily defeated. As a result of conquest, the “non believers” would eventually convert (spreading Islam) or pay a pricy land