What was happening in society that led to the drastic turn of religion to Christianity in the Western Roman Empire? And why was this a prime time for religion to thrive?

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

answer; provide for the common defense:

answer; revisionist;

answer; reincarnation of an eternal soul;