Aristotle was a Greek philosopher and scientist. At eighteen, he joined Plato's Academy in Athens and remained there until the age of thirty-seven (c. 347 BC). His writings cover many subjects – including physics, biology, zoology, metaphys...

Philip II of Macedon was a Greek king of Macedon from 359 BC until his assassination in 336 BC. He was the father of Alexander the Great and Philip III. In 340 BC, Philip started the siege of Perinthus. Philip began another siege in 339 of...

Theophrastus, a Greek native of Eressos in Lesbos, was the successor of Aristotle in the Peripatetic school. He came to Athens at a young age, and initially studied in Plato's school. After Plato's death he attached himself to Aristotle. Ar...

Ptolemy I Soter I, was a Greek Macedonian general under Alexander the Great, who became ruler of Egypt (323–283 BC) and founder of both the Ptolemaic Kingdom and the Ptolemaic Dynasty. In 305/4 BC he demanded the title of pharaoh. His mo...

Seleucus I (Seleucus the Victor) was a Macedonian officer of Alexander the Great and one of the Diadochi. In the Wars of the Diadochi that took place after Alexander's death, Seleucus established the Seleucid dynasty and the Seleucid Empire...

Alexander III of Macedon, commonly known as Alexander the Great, was a king of Macedon, a state in the north eastern region of Greece, and by the age of thirty was the creator of one of the largest empires in ancient history, stretching fro...

Pytheas was a Greek merchant, geographer and explorer from the Greek colony Massilia (today Marseille). He made a voyage of exploration to northwestern Europe around 325 BC. He probably travelled around a considerable part of Great Britain,...

Epicurus was an ancient Greek philosopher as well as the founder of the school of philosophy called Epicureanism. Only a few fragments and letters of Epicurus's 300 written works remain. Much of what is known about Epicurean philosophy deri...

The Battle of Chaeronea was fought in 338 BC, near the city of Chaeronea in Boeotia, between the forces of Philip II of Macedon and an alliance of Greek city-states (the principal members of which were Athens and Thebes). The battle was the...

Zeno of Citium (The Stoic) was a Hellenistic philosopher from Citium, Cyprus. Zeno was the son of a merchant and a student of Crates of Thebes, the most famous Cynic living at that time in Greece. Zeno was, himself, a merchant until the age...

The Wars of the Diadochi (or Wars of Alexander's Successors) were a series of conflicts fought between Alexander the Great's generals over the rule of his empire between 322 and 275 BC. When Alexander the Great died (June 10, 323 BC), he le...

Pyrrhus of Epirus, king of the Molossians (from ca. 297 BC), Epirus (306-301, 297-272 BC) and Macedon (288-284, 273-272 BC), was one of the strongest opponents of early Rome. Some of his battles, though successful, cost him staggering losse...

Aristarchus of Samos was an ancient Greek astronomer and mathematician who presented the first known heliocentric model that placed the Sun at the center of the known universe with the Earth revolving around it. He was influenced by Phi...

Theocritus, the creator of ancient Greek bucolic poetry, flourished in the 3rd century BC. Little is known of Theocritus beyond what can be inferred from his writings. We must, however, handle these with some caution, since some of the poem...

Archimedes of Syracuse was an Ancient Greek mathematician, physicist, engineer, inventor, and astronomer. Although few details of his life are known, he is regarded as one of the leading scientists in classical antiquity. Generally consider...