Alexander the Great

Alexander was born in 356 BCE at Pella, the son of the Macedonian king Philip II and Olympias, who came from the royal house of Epirus. His upbringing centred on dynastic succession and aristocratic military culture. Relationships between Philip's different wives and children made an heir's position politically sensitive. Later stories of omens accompanying his birth belong to the legendary tradition rather than securely established biography.

He received instruction from Aristotle and became familiar with Greek literature and royal ideals. The precise content and influence of this education remain difficult to establish. He also undertook administrative responsibilities at a young age and participated in his father's warfare. This practical experience and the army developed by Philip were important conditions for his later activities as king and commander.

After Philip's assassination in 336 BCE, Alexander secured his kingship and suppressed resistance within and beyond Macedonia. In 334 BCE he began invading the Persian Empire. His warfare combined the Macedonian phalanx with mobile cavalry, siege technology and logistical organisation. Victories at the Granicus, Issus and Gaugamela successively opened access to large parts of the empire ruled by Darius III.

Conquest did not proceed solely through pitched battles. Prolonged sieges, negotiations, local alliances and the appropriation of existing administrative structures also mattered. After taking Tyre and entering Egypt, he founded Alexandria. In the Persian heartlands he retained some officials and appointed others. His presentation as the Persian king's successor gradually changed his relationship with the Macedonians around him.

Further advances in Central and South Asia brought sustained resistance and tensions within the army. After the campaign at the Hydaspes in 326 BCE, his soldiers refused to march further east. He encouraged cooperation between Macedonian and Iranian elites through marriages and the incorporation of new troops. These measures were also instruments of power; they do not demonstrate a fully developed ideal of cultural equality.

Under Philip, Macedonia had gained ascendancy over many Greek city-states, but their differences did not disappear. Alexander presented the Persian war partly as a collective Greek undertaking. The Achaemenid Empire meanwhile encompassed diverse languages, religions and local administrative arrangements. The invasion therefore confronted not a homogeneous society, but an extensive network of provinces, courts, cities and systems of taxation.

Kingship was legitimised through ancestry, military success and religious practice. Alexander used both Greek and local forms of royal representation, including his visit to the oracle at Siwa. Its significance is known chiefly through later narratives. Trade, migration and mercenary service had encouraged cultural contact before his campaigns; conquest changed the scale and political conditions of those contacts, but did not originate them.

The wars redistributed political power and wealth and caused destruction, deaths and enslavement. At Tyre and other cities, inhabitants were killed or enslaved. Supplying armies and maintaining garrisons also burdened local societies. The foundation and expansion of cities created new administrative and economic centres, but took place within an order imposed through military coercion rather than through voluntary agreement alone.

Macedonian and Greek soldiers, administrators and settlers established themselves in regions extending from Egypt into Asia. Some local elites retained influence through cooperation, while others were displaced. Expanding Greek-speaking networks encouraged new cultural exchanges alongside the persistence of local traditions. Outcomes varied by region; a general picture of immediate fusion fails to account for these differences and inequalities of power.

Alexander died in 323 BCE at Babylon after an illness whose precise cause has not been established. Poisoning and other explanations have been discussed, but a certain diagnosis is impossible. With no durable succession arrangement in place, conflicts arose among his commanders and dynastic relatives. The empire fragmented into successor states that used his conquests as the foundation for their own claims to authority.

His campaigns are generally associated with the beginning of the Hellenistic period, when Greek and other traditions circulated within new political settings. Many detailed biographies, however, were written centuries later using sources that are partly lost. Historians therefore investigate both the conqueror and representations of him. Accounts of a universal civilising mission are later interpretations and must be considered alongside the documented consequences of war.