Counted amongst the greatest military commanders of all times, Alexander the Great successfully created one of the largest empires—from Macedonia to Persia and India—of the ancient world. The son of King of Macedonia, Philip II, he ascended the throne at the age of 20 and achieved unprecedented success before he died at the age of 33.
Also known as Justinian the Great, Justinian I was the Eastern Roman emperor from 527 to 565. Even though he came from a peasant family, he was well educated in jurisprudence, theology, and Roman history. As emperor, he was known to be highly energetic and ambitious. He brought about several judicial reforms in his kingdom.
Ptolemy I Soter was a trusted companion of Alexander the Great of the Kingdom of Macedon. He later became the pharaoh of Ptolemaic Egypt and was the founder of the Ptolemaic dynasty. He turned Egypt into a Hellenistic kingdom and Alexandria into a center of Greek culture. He is also credited to have built the Library of Alexandria.