the original reason for the rise of the kingdom of ghana was

This began to change with development of the empire’s natural resources and its proximity to the developing trans-Saharan trade routes. In the earliest centuries of its existence, Ghana’s geographical conditions, its relatively low level of economic and technological development, and a sense of community among its citizens reduced differentiation among social classes and left power decentralized and moderate. Historians cannot be certain when the empire was founded, but some sources estimate that it began its rise to prominence in the fourth century as a city-state in the grasslands lying between the Sénégal and Niger rivers. What is known of Ghana’s early history is gleaned from archaeological finds, a tradition of oral history that stressed ancestor biographies, and the writings of early Arab historiographers. These territories correspond to portions of the modern-day countries of Senegal, Mali, and Mauritania. At the height of its power in the eleventh century, the Empire of Ghana controlled lands from west of the Sénégal River to the Atlantic Ocean, south and east to the Niger River, and north to the empire’s natural boundary with the Sahara. The Empire of Ghana organized scattered people and territories into a confederation of kingdoms that was led by a warrior tribe and a dominant royal clan.

The Empire of Ghana was the earliest of three major West African Sudanese empires active in sub-Saharan Africa in medieval times.

The original reason for the rise of the kingdom of ghana was