A it provided Homo habilis with more free time for other activities
Berbers.
The Berbers' history as a people in North Africa goes back thousands of years. In the ancient era (which is the time frame for the question you asked), the Berbers were influential as traders, establishing trade routes between North and West Africa and the sub-Saharan region.
Today, there are approximately 14 million Berbers living in Morocco, 9 million in Algeria, and additional populations of Berber descent in other parts of Africa.
Answer: Slave driver
Explanation:
The Slave Driver was the person responsible for ensuring that slaves did as they were told and worked very hard. They used cruel punishments such as whippings, slapping, punching and other forms of physical abuse.
They were known to be particularly cruel in order to instil fear in the enslaved people such that they would not even think of disobeying the slave driver.
Slave drivers were usually white but sometimes there would be a black slave driver with a white overseer.