a particular geographical region of indefinite boundary
Rain forests stretch along the Equator, which slices through the middle of the continent. These forests make up about 10 percent of Africa's land area.
a flat grassland in tropical or subtropical regions
Savannas are tropical grasslands dotted with small trees and shrubs. These flat or rolling plains cover about 40 percent of Africa's land area. The savannas have high temperatures and uneven rains.
Ghana's government had a unique method of transferring power from one ruler to another. "This is their custom and their habit," stated an Arab writer, "that the kingdom is inherited only by the son of the king's sister."
These villages grew into larger communities. African towns and cities were centers of government and trade. Traders and artisans thrived in these communities.
a family consisting of the nuclear family and their blood relatives
People often lived in extended families, or families made up of several generations. Extended families included parents, children, grandparents, and other relatives.