The Diadochi (daɪˈædəkaɪ ; singular: Diadochos; from Diádochoi, diˈadokhy) were the rival generals, families, and friends of Alexander the Great who fought for control over his empire after his death in 323 BC. The Wars of the Diadochi mark the beginning of the Hellenistic period from the Mediterranean Sea to the Indus River Valley. The most notable Diadochi include Ptolemy, Antigonus, Cassander, and Seleucus as the last remaining at the end of the Wars of the Successors, ruling in Egypt, Asia-Minor, Macedon and Persia respectively, all forging dynasties lasting several centuries. In ancient Greek, diadochos is a noun (substantive or adjective) formed from the verb, diadechesthai, "succeed to," a compound of dia- and dechesthai, "receive." The word-set descends straightforwardly from Indo-European *dek-, "receive", the substantive forms being from the o-grade, *dok-. Some important English reflexes are dogma, "a received teaching," decent, "fit to be received," paradox, "against that which is received." The prefix dia- changes the meaning slightly to add a social expectation to the received. The diadochos expects to receive it, hence a successor in command or any other office, or a succeeding work gang on work being performed by relays of work gangs, or metaphorically light being the successor of sleep. It was exactly this expectation that contributed to strife in the Alexandrine and Hellenistic Ages, beginning with Alexander. Philip had married a woman who changed her name to Olympias to honor the coincidence of Philip's victory in the Olympic Games and Alexander's birth, an act that suggests love may have been a motive as well. Macedon's chief office was the basileia, or monarchy, the chief officer being the basileus, now the signatory title of Philip. Their son and heir, Alexander, was raised with care, being educated by select prominent philosophers. Philip is said to have wept for joy when Alexander performed a feat of which no one else was capable, taming the wild horse, Bucephalus, at his first attempt in front of a skeptical audience including the king.