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Greek Philosophy Timeline
(6th century BCE - 6th century CE)Greek Philosophy refers to the intellectual tradition that emerged in ancient Greece beginning in the 6th century BCE. It encompasses the ideas of the Pre-Socratic natural philosophers, the ethical inquiries of Socrates, the metaphysical systems of Plato and Aristotle, and later schools such as Stoicism, Epicureanism, and Skepticism. Greek philosophers pioneered rational inquiry into the nature of reality, knowledge, ethics, and politics, laying the foundations of Western philosophy and science. More Less
Presocratics
Thales predicts the solar eclipse
May 28, 585 BC
Thales of Miletus, traditionally regarded as the first Greek philosopher, is said to have predicted a solar eclipse. He sought natural, rather than mythological, explanations for the world, proposing water as the fundamental principle (arche) of all things and founding the Milesian school of thought.
Image source: Thales of Miletus
Anaximander proposes the apeiron
570 BC
Anaximander of Miletus, a student of Thales, proposed that the origin of all things was the apeiron, an indefinite boundless substance. He also produced one of the first prose works on philosophy and made early contributions to cosmology, geography, and biology.
Image source: Anaximander
Pythagoras founds his school at Croton
530 BC
Pythagoras established a community in Croton, southern Italy, blending mathematics, mysticism, and philosophy. The Pythagoreans held that number was the essence of all things and pursued ideas such as the transmigration of souls, deeply influencing later Greek thought including Plato.
Image source: Pythagoras
Heraclitus writes on change and the logos
500 BC
Heraclitus of Ephesus taught that reality is in constant flux, famously comparing it to a river that cannot be stepped into twice. He introduced the concept of the logos, a rational principle governing the cosmos, and saw fire as a symbol of perpetual transformation.
Image source: Heraclitus
Anaxagoras brings philosophy to Athens
480 BC
Anaxagoras moved to Athens and became associated with Pericles, teaching that Mind (Nous) ordered the cosmos out of an original mixture of all things. He was later prosecuted for impiety, marking an early clash between new philosophy and traditional Athenian religion.
Image source: Anaxagoras
Parmenides composes his poem on Being
475 BC
Parmenides of Elea argued in his philosophical poem that true being is unchanging, eternal, and indivisible, and that change and motion are illusions of the senses. His rationalist approach set the agenda for much subsequent metaphysics and provoked responses from thinkers like Heraclitus's followers and atomists.
Image source: Parmenides
Zeno of Elea formulates his paradoxes
450 BC
Zeno of Elea devised famous paradoxes, such as Achilles and the tortoise and the dichotomy, intended to defend Parmenides by showing that motion and plurality lead to logical contradictions. His arguments stimulated the development of mathematics and theories of infinity.
Image source: Zeno of Elea
Empedocles introduces the four elements
450 BC
Empedocles of Acragas proposed that everything is composed of four roots—earth, water, air, and fire—mixed and separated by the forces of Love and Strife. His theory dominated Western science for centuries and influenced medicine through the idea of the four humors.
Image source: Empedocles
Democritus develops atomic theory
430 BC
Democritus of Abdera, with his teacher Leucippus, argued that reality consists of indivisible atoms moving in a void. His materialist and deterministic picture of nature anticipated modern science and was later revived by Epicurus and Lucretius.
Image source: Democritus
Classical Athens
Protagoras and the rise of the Sophists
450 BC
The Sophists were traveling teachers who offered instruction in rhetoric and argument for fees. Protagoras, the most famous, declared that 'man is the measure of all things,' emphasizing relativism and human convention, and provoking debates about truth, virtue, and education in democratic Athens.
Image source: Sophist
Key Facts
- The Pre-Socratic philosophers, such as Thales, Heraclitus, and Parmenides, were the first to seek natural rather than mythological explanations for the world's origins and structure.
- Socrates (c. 470-399 BCE) shifted philosophy toward ethics and human conduct, using his method of persistent questioning, known as the Socratic method, before being sentenced to death by Athens.
- Plato founded the Academy in Athens around 387 BCE, one of the earliest institutions of higher learning, and developed influential theories such as the Theory of Forms.
- Aristotle, Plato's student, tutored Alexander the Great and made foundational contributions to logic, biology, ethics, and political theory through his school, the Lyceum.
- Hellenistic schools like Stoicism, Epicureanism, and Skepticism spread Greek philosophical ideas across the Mediterranean, deeply influencing Roman thought and later Western civilization.
Source
This Greek Philosophy timeline was generated with the help of AI, using information found on the internet.
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