On this day 2,346 years ago Alexander the Great died in Babylon after a night of heavy drinking.
But what made him so great? And why was he mentioned in both the Bible and the Quran?
This is the story of the man who conquered the world before he was 30 years old...

Alexander was born in 356 BC in a city called Pella, the capital of Macedonia, to the north of Greece.
As a boy he was tutored by the famous Greek philosopher Aristotle, and imbued with a burning ambition by his mother, Olympias.
Later legends would say he was the son of Zeus.
Alexander's father, Philip II, has been overshadowed by his son.
For when Philip came to power in 359 BC Macedonia was in a terrible state, threatened by Thrace and Illyria and by the Greek cities, and on the brink of collapse.
But he was the right man at the right time...

By the end of Philip's reign Macedonia had become the most powerful state in the region; Thrace and Illyria were subdued, and Philip had defeated the Greek cities and made himself de facto leader of Greece.
He was an astute diplomant, inspired general, and sharp reformer.

But Philip was assassinated in 336 BC by a bodyguard called Pausanias, who desperately desired fame. As the story goes, he thought the best way to become famous was by murdering the most famous man alive.
And so, the twenty year old Alexander was declared king.

Alexander's first job was to secure his position and put down the rebellions that arose after the death of Philip.
He ruthlessly eliminated his rivals to the throne, defeated revolts in Thrace and Illyria, and asserted dominance over Greece by destroying the city of Thebes.
With his kingdom secure, the Balkans subdued, and the Greeks united under his rule, Alexander set out on the campaign Philip had prepared for: an invasion of the Persian (or Achaemenid) Empire.
For two centuries the mighty, wealthy Persians had been the Greeks' mortal enemies.

With his Macedonian soldiers, battle-hardened under Philip, and supported by a circle of competent generals, Alexander swept eastwards, out of Europe and through modern-day Turkey, toward Mesopotamia, the heart of the Persian Empire.
It was a rapid, unstoppable advance.

One of the many myths about Alexander comes from this time.
In a place called Gordium there was a famously complex knot tying an oxcart to a post; whoever could untie it was destined to rule Asia.
Alexander stepped up... and simply cut the Gordian knot with his sword.

But the Persian Emperor, Darius III, brought together all his many armies from across the many nations he ruled to halt Alexander's advance.
At battle took place at Issus, on the modern Turkish-Syrian border, and Alexander won a clear and resounding victory.

So Darius retreated and offered Alexander a deal: to make peace, and Alexander could have half his kingdom. Parmenion, one of Alexander's generals, said that he would accept the terms if he were Alexander.
To which he replied, "So would I, if I were Parmenion."
No peace deal.
After the Battle of Issus Alexander conquered Egypt, before going on to Mesopotamia and decisively defeating Darius at the Battle of Gaugemala despite being heavily outnumbered.
That was in 331 BC; the Persian Empire was no more, and the great Greek dream had been realised.

Alexander pushed on even further, all the way into modern-day Afghanistan, Pakistan, and India.
He swept all before him and remained, until his death, undefeated in battle.

Alexander next planned an invasion of Arabia, but northwestern India marked the limit of his conquest; the mutinous troops wanted to go home.
He had left Macedonia less than ten years earlier and conquered half the known-world by the age of the thirty.

Just compare the kingdom Alexander inherited to the one he created; we need not explore the details of his campaigns to know that this was one of history's greatest military strategists — and leaders outright.
His brilliance was matched only by his audacity.

Alexander was also, it turns out, a master of PR.
For one, he made sure to bring with him on his campaign the finest poets, artists, and writers of the age.
Whether his "official" historian Callisthenes, the sculptor Lysippos, the painter Apelles, or the engraver Pyrgoteles.
He also named his two sons... Alexander and Hercules.
And he was fond of founding cities and naming them after himself; like Alexandria, in Egypt, which would become the world's greatest city.
Here's a map of all the cities he named after himself, from Greece to Afghanistan.

But this wasn't all egoism; Alexander's curation of his image was about political legitimacy and stability.
He sought to merge Graeco-Macedonian culture with that of Persia, intermarrying his generals with Persian nobles and mixing their customs to create a multicultural empire.
But it was too much when Alexander demanded "proskynesis" — the traditional method of greeting a Persian king by prostrating yourself on the floor.
The Greeks and Macedonians reserved proskynesis for their gods, and refused to do it for Alexander.

In the immediate aftermath of his death there came the so-called Wars of the Diadochi.
These were his leading generals — the likes of Ptolemy, Perdiccas, Seleucus, and Antigonus Monophthalmus — and they fought for several decades over the empire he had created.
So Alexander's empire rapidly disintegrated, but several of the kingdoms established by his successors — such as Ptolemaic Egypt, Antigonid Macedonia, the Seleucid Empire — lasted for centuries.
They only ceased to exist when they were eventually conquered by the Romans.

In the long run, Alexander's legacy was to establish the "Hellenistic Age."
He had shattered the Persian Empire, linking West with East, and spread both Greek language and culture all throughout Eurasia.
So his legacy was, in the end, to reshape the world culturally.
From the Delhi Sultanate to Christian Europe and everywhere between, Alexander has loomed large in political, religious, poetic, and popular culture for over two thousand years; he even features in the Bible and the Quran.
One of few truly cross-cultural heroes.

You can read more about the life of Alexander in accounts written by ancient historians like Arrian, Plutarch, or Diodorus Siculus.
Was he hero or villain, liberator or megalomaniac? Was he Great... or not?
Whatever he was, posterity will never forget Alexander of Macedon.