By Nick Vaneerdewegh and Lars Rutten With the collection of Dr. Stephan Coffman, a highly significant ensemble of coins from the great ancient African kingdom of Axum is sold at Leu Numismatik. Learn more about the history of Axum and the often disregarded Axumite Coinage in this detailed article. According to Manichean literature, the great prophet Mani, living in the 3rd century AD, claimed that four great empires ruled the world: Rome, Persia, China, and Axum.