How did the muslim empires using common language increase different parts of afroeurasia become more interconnected

Answer:  

Empire comes in Afro Eurasia for trading through trading in continents they spread their language among people.

Explanation:

In midth of the seventh century, in Africa Islams already entered in their markets through trading goods. After the seventh century, in between eight and night century, Muslim traders and travelers come in Africa for spreading Islamic religion. They spread their religion in the eastern coast, the western coast and some parts of Sudan. Their influence results in building mosques for those who accepted the Islamic religion. The society of Africa also accepted their art, literature and traditions. In some part of Africa talismans, written script were found.

Prince henry the navigator is the man you're looking for.