Mulisms
Spread of RELIGION and many other ideas :)
By blocking its primary trade routes
natural barriers made it difficult for the olmecs to expand
Missionaries are the people who help spread a religion.
As Islam spread throughout middle eastern lands, it changed. It became differed with each region it came into, creating a localized religion. Eventually it became so different it split into 2 caliphates
it affected religion because some of the thinkers like Rousseau believed in democracy and freedom of religion, and that's how many religions spread.
Islam spread from Arabia.
If we take time as a measure of the spread of religion,then since its establishment ,Islam is the religion which spread or still spreading rapidly in Asia followed by Christianity.
The Islamic empire expanded through conquest. Islam as a religion spread both due to the imperial growth and due to peaceful conversions of those outside of the empire.
It spread by Christian missionaries looking for a new place to spread their religion
Islam was the religion that spread from the Arabian Peninsula to Africa.
Migration is cause of spread of religion. As people travel they bring along their religion, and the constitution does not prevent them.