Final answer:
The Maghreb region of Africa was the first to be converted to Islam by 700 C.E.
Step-by-step explanation:
The region of Africa that was first converted to Islam by 700 C.E. was the Maghreb region.
The Maghreb region, located in North Africa, includes modern-day countries such as Morocco, Algeria, Tunisia, Libya, and Mauritania. It was the first region in Africa to come under Islamic influence.
By the early 8th century, Arab Muslim armies had conquered parts of the Maghreb and introduced Islam to the indigenous Berber population. Over time, the majority of the population in this region embraced Islam.
Learn more about Islam in Africa