Indonesia, West Africa, China and the Philippines
India, Africa and Southeast asia
It spread through simply trade and conquest.
ISLAM
Trade positively impacted the spread of Islam. As Muslim merchants brought their wares to places outside of the Islamic Caliphates, they were able to introduce West Africans, East Africans, and Indonesians the tenets of their faith and seed new Muslim communities.
royal marriages, missionaries, conquest and trade.
Islam first spread along TRADE ROUTES since merchants could often bring the religion to places too far away to effectively conquer.
Muslim merchants set up trading posts throughout southeast Asia and taught Islam to people there.
spread ideas through trade, conquest, and expansion
Islam spread to the island of southeast Asia through traders and merchants. Many of the city states in Malaysia and west Indonesia had a strong maritime trading orientation and as a result, accommodated many Muslim merchants from Arabia, India, and the East African coast. As a result, the ideas of Islam became incorporated in those areas, supplanting the previous Buddhism. In the rest of Southeast Asia, such as Thailand, Cambodia, Laos, Burma, and Vietnam, the orientation was much more inland and river-based trade, meaning that Islam did not have the same inroads and access.
Trade.
Islam spread fairly easily in Mali, as the people practiced Islam with their traditional religions. Islam first reached West Africa through trade.
Berbers spread Islam through conquest and trade, particularly during the Arab conquests in the 7th and 8th centuries. The spread of Islam was also facilitated by the intermingling of Arab and Berber populations in North Africa, leading to the conversion of many Berbers to Islam. Additionally, the establishment of Muslim states in the region helped solidify the presence of Islam among the Berber communities.