Ethiopia was the first black african society to do what ?

North African peoples who were the first to develop saddles for use on the camel. The first black African society that can be studied from written records; it was the site of the kingdom of Axum. The name of a great African kingdom inhabited by the Soninke people.

The first black African society that can be studied from written records; it was the site of the kingdom of Axum.

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

c, to compete