Answer: D. The reigns of kings
Explanation:
The Canon of Kings which was preserved by Claudius Ptolemy, recorded the reigns of various kings from the Babylonians to the Persians and to the Ptolemies and the Romans. The accuracy is generally not questioned by historians indicating its accuracy.
The Canon was useful to early astronomers such as Ptolemy would use it to date the lunar eclipses as well as other astronomical events to the various reigns of different kings.
The immigrants were looking for economic stability
The Ghana Empire amassed large volumes of gold and resources, expanded trade among nations near and far, established a structured court system and introduced standard military organization.<span> The Ghana Empire, also called the Kingdom of Ghana, enjoyed significant power from the ninth century to the 11th century A.D. Kings and rulers discovered significant gold deposits in the kingdom's lands, such as Mali, Mauritania and Senegal, and the newfound wealth helped rulers establish a powerful, prominent kingdom.</span>
