WORLD HISTORY

Detailed explanation-1: -Religions spread over time through a process called diffusion. The map shown above indicates where the identified religions are most prominent. There are two methods of diffusion: expansion and relocation. In expansion diffusion, beliefs of a religion transmit by direct contact between believers and nonbelievers.

Detailed explanation-2: -Missionaries in Islam Islam spread through three main avenues: military conquest, trade, and missionary activity. Once Islam was introduced through one of those avenues, the religion spread because of its tolerance for other beliefs, its simple principles, and its emphasis on charity and spiritual equality.

Detailed explanation-3: -Effects of Religion on Trade First, a shared religious belief may enhance trust and therefore reduce transaction costs between trading partners.

Detailed explanation-4: -Migration-When people moved to other places, they many times told others about their beliefs, helping to spread it along. Sometimes they chose to move, other times they were forced. Teachings-Most religions had people who spent their time teaching others and trying to convert them to their religion.