Inquisitive_
VIP
What civilization are you talking about?
Several, the most recent being the moor's in Spain (whom were present day Senegalese), Kingdom of Ghana and the Kingdom of Mali were the richest man that ever lived in this world Musa Mensah on his pilgrimage to Mecca destroyed the entire economy of all the Arab countries he went past including the city itself because of the amount of Gold he was carrying and the charity he gave.
These are all recent histories after the Prophet without going back to ancient Egypt which went back and forth between them and us for thousands of years, the Persian's and Roman's were recent arrivals.