What was the key to power for West Africa rulers?
ownership of all the land
control of the iron mines
control of the trans-Saharan trade
What region lies just below the Sahara Desert in West Africa?
the Nile River Valley
the Niger River Valley
the Guinea Highlands
Which leader was the first to rule the Songhai empire?
Askia Muhammad I
Islam first arrived in West Africa during the rule of which kingdom?
Songhai fell to what country?