All Events
Socrates, convicted in Athens of impiety, is sentenced to death and drinks the hemlock
The Romans capture the nearby Etruscan town of Veii, beginning a long process of territorial expansion
Celtic tribes , pushing south through the Alps, reach Rome and sack the city
Plato establishes a school in Akademeia, a suburb of Athens
At the Second Buddhist Council the Theravada version of the faith emerges, surviving today as the second largest Buddhist sect
Central to Plato's philosophy is the theory that there are higher Forms of reality, of which our senses perceive only a transient shadow
A Greek text, attributed to Polybus, argues that the human body is composed of four humours
A Spartan army is overwhelmed at Leuctra by a smaller number of Thebans under Epaminondas
Aristotle, at the age of seventeen, comes to Athens to join Plato's academy
Philip II succeds his father Amyntas III on the throne of Macedonia, the northernmost kingdom of Greece
Philip II sets about making Macedon the most powerful state in Greece

Alexander the Great is born in Pella, the capital of his father Philip II, at the heart of the expanding Macedonian kingdom
Artemisia, widow of Mausolus, builds him a tomb at Halicarnassus so spectacular that his name provides a new word - mausoleum
Eudoxus of Cnidus proposes the concept of transparent spheres supporting the bodies visible in the heavens
Daoism, attributed to the mythical sage Lao Tzu, becomes a popular alternative to the solemnity of Confucianism
Private financiers in Athens give loans, take deposits, change money from one currency to another and arrange credit for travellers
Tea, now well established as a drink, features in a Chinese dictionary
The earliest description of a pulley appears in a Greek text
The brutal philosophy of Legalism contributes to the decline of the Zhou dynasty
The Mahabharata, India's great national epic, begins to take shape
The earliest surviving decimal multiplication table is written in China on twenty-seven bamboo strips, known now as the Tsinghua Bamboo Slips
The citizens of Olynthus abandon their houses, with elaborate mosaic floors, when their city is attacked by Philip of Macedon
Aristotle is employed in Macedon as tutor to the 13-year-old heir to the throne, Alexander
Hephaestion, Alexander's closest lifelong friend, may have been among the small group taught by Aristotle
Homer's Iliad becomes a profound source of inspiration to Alexander, who will keep scrolls of the text in his tent during his conquests