I'm currently working on a university assignment and my topic is pilgrimage in ancient Greece and the Near East. I have Christianity down as it generally spread through Constantine. I am unsure about any one dominant monotheistic religions though. I know Islam arrived in Arabia around 632 CE (or presumably earlier as that was when paganism) was eradicated, but what about the other regions?
Thank you in advance.
I have Christianity down as it generally spread through Constantine.
This is factually incorrect and misleading. As an offshoot from Judaism, Christianity began as a Near-Eastern religion. It spread extensively in Syria, Asia Minor, and across Persia with no real help from the Roman Empire. Armenia's establishment as a Christian kingdom predates Constantine, and the Church of the East/Assyrian Church probably regretted the identification of Christianity with Constantine and the Empire, since it appears to have caused them political troubles.