Missionarries!
cultural diffusion
It spread by Christian missionaries looking for a new place to spread their religion
cultural diffusion if im not mistaken
In every country or place you will find people that practice the Islamic religion, as it has widely spread thoughout the world.
Muslims worship in mosques but the religion is Islam
it spread the religion of budhism to china which was spread to Korea and then japan
Religion reacts and spreads when in contact with other religions by assimilating the people in the weaker or smaller religion. Sometimes this takes place through war and sometimes conversion is utilized.
An ancient place, which shows the lifestyle, culture and religion of ancient people is called a historical place. India is best place for historical researcher.
By people traveling place to place
Zorasterism is a religion that originated in iran. They worship in a place called a fire temple. About 200,000 people worship this relgion.
Judaism
In Sikhism, the place of worship is called a Gurdwara. It is a central meeting place for Sikhs to gather, pray, and participate in religious ceremonies and community service. Gurdwaras are open to people of all faiths and backgrounds.