Answer:
Africa
SE Asia
South Asia
Europe
Explanation:
After the death of the prophet Muhammad, there was a military expedition in North Africa which led to the spread Islam religion. In other regions, Islam spread through trade and commerce.
Africa became the first continent to convert into Islam. Islam began to spread in Africa in the parts of West and North during the 9th century. Islam spread in West Africa through military conquest and trade.
Islam spread in South East Asia, especially, Malaysia, where traders communicate with Muslims who introduced them about Islam in 1120 C.E.
Islam continues to spread by Muslim traders throughout South Asia with the expansion of trade in India.
Islam spread in Europe after the Ottoman Empire began its conquest by taking the Byzantine Empire through capturing Constantinople.
