I dream of going back in time and nuking the entirety of Arabia in 610. Without the rise of islam, how would the world as a whole and the mediterranean develop?
Religion in pre-Islamic Arabia was a mix of polytheism, Christianity, Judaism, and Iranian religions.
Arab polytheism, the dominant belief system, was based on the belief in deities and other supernatural beings such as djinn. Gods and goddesses were worshipped at local shrines, such as the Kaaba in Mecca. The Kaaba was dedicated to Hubal and also contained the images of the three chief goddesses Al-lāt, Al-‘Uzzá and Manāt.