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Athenian democracy refers to the system of democratic government used in Athens, Greece from the 5th to 4th century BCE. Under this system, all male citizens - the dēmos - had equal political rights, freedom of speech, and the opportunity...

Cardinal Thomas Cajetan (l.c. 1468-1534) was a Catholic theologian and philosopher best known for his disputations with Martin Luther (l. 1483-1546) beginning in 1518. Cajetan, a philosophical Humanist, was thought to have had the best chance...

Plotinus (c. 204-270) was a Platonic philosopher born in Lycopolis, Egypt. Although the story of his life was written down by his student Porphyry, few biographical details are included because Plotinus rejected the physical world of appearances...

Although he is often only remembered for being the father of Alexander the Great, Philip II of Macedon (reigned 359 BCE - 336 BCE) was an accomplished king and military commander in his own right, setting the stage for his son's victory over...

Cleopatra of Macedon (355/4-308 BCE), daughter of Philip II of Macedon (reign 359-336 BCE) and his Molossian queen, Olympias of Epirus (c. 375-316 BCE), was the only full sister of Alexander the Great (reign 336-323 BCE). Born in Pella, the...

Parmenides (l.c. 485 BCE) of Elea was a Greek philosopher from the colony of Elea in southern Italy. He is considered among the most important of the Pre-Socratic philosophers who initiated philosophic inquiry in Greece beginning with Thales...

Anaximenes of Miletus (l. c. 546 BCE) was a younger contemporary of Anaximander and generally regarded as his student. Known as the Third Philosopher of the Milesian School after Thales (l. c. 585 BCE) and Anaximander (l. c. 610 - c. 546...

Thessalonike of Macedon (c. 345-295 BCE) was the daughter of Philip II of Macedon (r. 359-336 BCE) and one of his several consorts, Nikesipolis of Pherae (also spelt Nicesipolis). Born to the Argead family of Macedonian rulers like her half-brother...

Menelaus of Alexandria was a Greek astronomer, scientist, and mathematician who lived around 100 CE. Menelaus made a significant and lasting contribution to the fields of astronomy, geometry, and trigonometry. His major work, the Spherics...

Aristarchus of Samos (l. c. 310 - c. 230 BCE) was a Greek astronomer who first proposed a heliocentric model of the universe in which the sun, not the earth, was at the center. Although his theory was noted by other thinkers of his time...