The Reasons for the migration of the Bantu are not known but they most likely included the following, they moved due to the fear of famine, which broke out due to overcrowding and drought. The climate in their cradle land had become unreliable/unpredictable.
He used them to develop the plot. He was a master at plot development. Bierce loved to develop the plot through a sequence of events even if it made the reader uncomfortable.
