The governments of African countries have evolved over time, the present ruling system differs from that of the past. In the past, most African countries either had, empires, kingdoms or chiefdoms whereby most of them were a hereditary system. The major way most kingdoms were acquired or expanded was through conquest. During this period, it was kings who ruled the most successful empires in Africa. some of the most influential Empires in Africa range from but not limited to; Sahelian kingdoms found in the Sahara Desert: Oyo Kingdom Located in West Africa: the Kongo Kingdom in Central Africa: The Zulu Kingdom in South Africa and the Buganda Kingdom in Eastern Africa. The word of the king was the law on the land, and everyone who lived in these kingdoms agreed to be bounded by the laws of the king. These kings lead successful conquest leading to the growth and expansion of their kingdoms. Additionally, hunting, trading and farming were the main economic activities in this kingdoms.