Final answer:
The three important empires formed in West Africa in the middle ages around the Niger River were Ghana, Mali, and Songhai.
Step-by-step explanation:
The three important empires formed in West Africa in the middle ages around the Niger River were Ghana, Mali, and Songhai.
Ghana Empire, also known as the Wagadou Empire, was the first West African empire to emerge and it thrived from the 4th to the 13th century. It was known for its control of the gold and salt trade routes.
Mali Empire, founded by Sundiata Keita, was a powerful empire that existed from the 13th to the 16th century. It reached its peak under the rule of Mansa Musa, known for his pilgrimage to Mecca and his patronage of education and the arts.
Songhai Empire, established by Sunni Ali, was the last of the great empires in West Africa. It emerged in the 15th century and thrived until the 16th century. It was known for its strong military and efficient administration.
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