Final answer:
False. While slavery existed in African societies, it was primarily the Europeans who played a significant role in the enslavement of Africans, not tribal warfare.
Step-by-step explanation:
False. While it is true that slavery was present in African societies, it is a misconception that the tribes in Africa would go to war and capture another tribe to make them their slaves. Slavery in Africa was often a result of various factors such as internal conflicts, political instability, and trade with European powers. The transatlantic slave trade involved the capture and sale of Africans by African traders to Europeans, who then transported them as enslaved laborers. Therefore, it was primarily the Europeans who played a significant role in the enslavement of Africans, rather than tribal warfare.