Ancient Greece: History Timeline & Key Events
21 key events in the history of Ancient Greece, from 776 BCE to 240 BCE, with places and context on an interactive map.
Open the interactive map776 BCE · First Olympic Games
The first recorded Olympic Games are held at Olympia in Greece, marking a key moment in Greek cultural unity. (Olympia, Greece) View on map
750 BCE · Homer Composes the Iliad and Odyssey
Homer composes the Iliad and Odyssey, the foundational epic poems of Western literature, shaping Greek identity and values. (Ionia (Smyrna)) View on map
585 BCE · Thales of Miletus — Birth of Greek Philosophy
Thales of Miletus, considered the first Western philosopher, proposes that natural phenomena can be explained through reason rather than mythology. He reportedly predicts a solar eclipse in 585 BCE, demonstrating the power of systematic observation. His central question — 'What is the world made of?' — launches the Greek philosophical tradition that will define Western intellectual identity. (Miletus, Ionia) View on map
530 BCE · Pythagoras Founds His School
Pythagoras establishes a philosophical and mathematical school in Croton, contributing the Pythagorean theorem and the concept of mathematical harmony. (Croton, Magna Graecia) View on map
508 BCE · Athenian Democracy Established
Cleisthenes reforms Athenian government, establishing the world's first known democracy with citizen assemblies and elected officials. (Athens) View on map
480 BCE · Battle of Salamis (Greek Naval Victory)
The Greek fleet, led by Themistocles, decisively defeats the larger Persian navy in the straits of Salamis, turning the tide of the Greco-Persian Wars. (Salamis, Greece) View on map
441 BCE · Sophocles and Greek Tragedy
Sophocles writes masterpieces like Oedipus Rex and Antigone, elevating Greek tragedy to its highest artistic achievement. (Athens) View on map
432 BCE · Parthenon Completed
The Parthenon temple is completed on the Athenian Acropolis, a masterpiece of Doric architecture and symbol of Athens' golden age. (Athens) View on map
431 BCE · Peloponnesian War Begins
Athens and Sparta begin the devastating Peloponnesian War, a 27-year conflict that reshapes the Greek world and weakens all city-states. (Athens & Sparta) View on map
420 BCE · Hippocrates: Father of Medicine
Hippocrates of Kos establishes medicine as a rational discipline separate from religion, creating the Hippocratic Oath still referenced today. (Kos, Greece) View on map
411 BCE · Thucydides Writes History of the Peloponnesian War
Thucydides writes his rigorous, evidence-based account of the Peloponnesian War, pioneering the scientific approach to historiography. (Athens) View on map
399 BCE · Trial and Death of Socrates
Socrates is tried and executed in Athens for impiety and corrupting youth, becoming a foundational figure of Western philosophy. (Athens) View on map
387 BCE · Plato Founds the Academy
Plato establishes the Academy in Athens, one of the first institutions of higher learning in the Western world. (Athens) View on map
335 BCE · Aristotle Founds the Lyceum
Aristotle establishes his school, the Lyceum, in Athens, making groundbreaking contributions to logic, biology, ethics, and political science. (Athens) View on map
333 BCE · Battle of Issus: Alexander vs Darius III
Alexander the Great defeats Darius III at Issus, a decisive battle that opens the door to the conquest of the Persian Empire. (Issus, Cilicia) View on map
332 BCE · Alexander Conquers Egypt
Alexander the Great conquers Egypt and founds the city of Alexandria, which becomes a major center of Hellenistic culture and learning. (Alexandria, Egypt) View on map
331 BCE · Battle of Gaugamela: Fall of Persia
Alexander decisively defeats Darius III at Gaugamela, effectively ending the Achaemenid Empire and beginning Hellenistic rule over Persia. (Gaugamela, Mesopotamia) View on map
300 BCE · Euclid Writes the Elements
Euclid compiles his Elements in Alexandria, the most influential mathematics textbook ever written, used for over 2,000 years. (Alexandria, Egypt) View on map
283 BCE · Library of Alexandria Founded
The Great Library of Alexandria is established, becoming the largest and most significant library of the ancient world. (Alexandria, Egypt) View on map
250 BCE · Archimedes: Greatest Ancient Scientist
Archimedes of Syracuse makes groundbreaking discoveries in mathematics, physics, and engineering, including the principle of buoyancy and the Archimedean screw. (Syracuse, Sicily) View on map
240 BCE · Eratosthenes Calculates Earth's Circumference
Eratosthenes accurately calculates the circumference of the Earth using geometry and shadow measurements, a remarkable scientific achievement. (Alexandria, Egypt) View on map