1. Leonidas I Leonidas I was a hero-king of Sparta, the 17th of the Agiad line, one of the sons of King Anaxandridas II of Sparta, who was believed in mythology to be a descendant of Heracles, possessing much of the latter’s strength and bravery. Leonidas I is notable for his leadership at the Battle of Thermopylae, which has long been the topic of cultural inspiration, as it is perhaps the most famous military last stand of all time. His “against all odds” story is passed to us from the writings of the Greek Herodotus. He relates the story of 300 Spartans and 700 Thespians defending the Pass of Thermopylae against almost “2 million” Persians for three days. Although modern historians have questioned the numbers presented by Herodotus, with most at around 100,000 to 250,000 invaders, the story has resonated with authors and poets for centuries over the inspiring bravery and resolution of the Spartans.

The performance of the defenders at the battle of Thermopylae is often used as an example of the advantages of training, equipment, and good use of terrain to maximize an army’s potential and has become a symbol of courage against overwhelming odds. Even more, both ancient and modern writers used the Battle of Thermopylae as an example of the superior power of a volunteer army of freemen defending native soil. The sacrifice of the Spartans and the Thespians has captured the minds of many throughout the ages and has given birth to many cultural references as a result.
2. Herodotus Herodotus was an ancient Greek historian who was born in Halicarnassus, Caria, and lived in the 5th century BC (c. 484 BC – c. 425 BC). He has been called the “Father of History,” and was the first historian known to collect his materials systematically, test their accuracy to a certain extent, and arrange them in a well-constructed and vivid narrative.

The Histories — his masterpiece and the only work he is known to have produced — is a record of his “inquiry” (or ἱστορία historía, a word that passed into Latin and took on its modern meaning of history), being an investigation of the origins of the Greco-Persian Wars and including a wealth of geographical and ethnographical information. Although some of his stories were not completely accurate, he claimed that he was reporting only what had been told to him. Little is known of his personal history, since ancient records are scanty, contradictory and often fanciful.
3. Democritus Democritus was an Ancient Greek philosopher, born in Abdera, Thrace, Greece. He was an influential pre-Socratic philosopher and pupil of Leucippus, who formulated an atomic theory for the cosmos. His exact contributions are difficult to disentangle from his mentor Leucippus, as they are often mentioned together in texts. Their speculation on atoms, taken from Leucippus, bears a passing and partial resemblance to the 19th century understanding of atomic structure that has led some to regard Democritus as more of a scientist than other Greek philosophers; however, their ideas rested on very different bases.

Largely ignored in ancient Athens, Democritus was, nevertheless, well-known to his fellow northern-born philosopher Aristotle. Plato is said to have disliked him so much that he wished all his books burned. Many consider Democritus to be the “father of modern science.”
4. Solon “In making their own evaluation of Solon, the ancient sources concentrated on what were perceived to be the democratic features of the constitution. But…Solon was given his extraordinary commission by the nobles, who wanted him to eliminate the threat that the position of the nobles as a whole would be overthrown.” — Stanton, G.R. Athenian Politics c800-500BC: A Sourcebook, Routledge, London (1990), p. 76.

Solon was an Athenian statesman, lawmaker and poet. He is remembered particularly for his efforts to legislate against political, economic and moral decline in archaic Athens. His reforms failed in the short term, yet he is often credited with having laid the foundations for Athenian democracy.
5. Phidias Phidias, or the great Pheidias, was a Greek sculptor, painter and architect, who lived in the 5th century BC, and is commonly regarded as one of the greatest of all sculptors of Classical Greece. Phidias’ Statue of Zeus, at Olympia, was one of the Seven Wonders of the Ancient World. Phidias also designed the statues of the goddess Athena on the Athenian Acropolis, namely the Athena Parthenos, inside the Parthenon and the Athena Promachos, a colossal bronze statue of Athena which stood between it and the Propylaea, a monumental gateway that served as the entrance to the Acropolis in Athens.

Prior to the Peloponnesian war, Phidias was accused of embezzling gold intended for the statue of Athena inside the Parthenon. Pericles’ enemies found a false witness against Phidias, named Menon. Phidias died in prison, although Pericles’ companion, Aspasia, was acquitted of her own charges.
6. Thales of Miletus Thales of Miletus was a pre-Socratic Greek philosopher from Miletus, in Asia Minor, and one of the Seven Sages of Greece. Many, most notably Aristotle, regard him as the first philosopher in the Greek tradition. According to Bertrand Russell, “Western philosophy begins with Thales.” Thales attempted to explain natural phenomena without reference to mythology, and was tremendously influential in this respect.

In mathematics, Thales used geometry to solve problems, such as calculating the height of pyramids and the distance of ships from the shore. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales’ Theorem. As a result, he has been hailed as the first true mathematician, and is the first known individual to whom a mathematical discovery has been attributed. Also, Thales was the first person known to have studied electricity.
7. Hippocrates of Cos Hippocrates of Cos was an ancient Greek physician of the Age of Pericles (Classical Athens), and is considered one of the most outstanding figures in the history of medicine. He is referred to as the father of Western medicine in recognition of his lasting contributions to the field as the founder of the Hippocratic School of Medicine. This intellectual school revolutionized medicine in ancient Greece, establishing it as a discipline distinct from other fields that it had traditionally been associated with (notably theurgy and philosophy), thus establishing medicine as a profession.

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