Timeline : Scientists
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Thales, Greek Philosopher & Scientist
Thales of Miletus seems to be the first known Greek philosopher, scientist and mathematician although his occupation was that of an engineer. He is believed to have been the teacher of Anaximander (61... |
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Anaximander of Miletus, Philosopher
Anaximander, Ionian philosopher of Miletus, the first Greek known to have written (c.546) a book in prose, a treatise on nature, now lost except for one quotation. It was said that he introduced into... |
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Pythagoras of Samos
Pythagoras of Samos is often described as the first pure mathematician. He is an extremely important figure in the development of mathematics yet we know relatively little about his mathematical achie... |
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Hippocrates of Kos, Father of Medicine
Hippocrates of Kos was an ancient Greek physician. He has been called "the father of medicine", and is commonly regarded as one of the most outstanding figures in medicine of all time. He was a physic... |
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Democritus, Atomic Theory
Democritus of Abdera is best known for his atomic theory but he was also an excellent geometer. Very little is known of his life but we know that Leucippus was his teacher. Although little is known of... |
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Aristotle, Greek Philosopher
He studied (367-347 B.C.) under Plato and later (342-339 B.C.) tutored Alexander the Great at the Macedonian court. In 335 B.C. he opened a school in the Athenian Lyceum. During the anti-Macedonian ag... |
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Euclid of Alexandria, Mathematician
Euclid of Alexandria is the most prominent mathematician of antiquity best known for his treatise on mathematics The Elements. The long lasting nature of The Elements must make Euclid the leading math... |
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Aristarchus, Sun at center of Universe
Aristarchus of Samosis the first person we know of who suggested that the earth might go around the sun and not the other way around. He figured this out by looking at the shadow of the earth on the m... |
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Archimedes of Syracuse
One of the most original thinkers of Antiquity was Archimedes of Syracuse. Because our approach to physics is based upon a model that was developed by this scientist, we immediately recognize him as '... |
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Eratosthenes, Measuring the Earth
Eratosthenes of Cyrene was a Greek scholar who lived and worked in Cyrene and Alexandria. Eratosthenes was director of the famous library in Alexandria, and is known for numerous important contributio... |
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Hipparchus, Astronomer
Hipparchus was the most important Greek astronomers of his time. He very accurately cataloged over 1,000 stars and invented the mathematical science of trigonometry. Ptolemy was a great admirer of Hip... |
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Heron of Alexandria, Inventor Steam Engine
Heron of Alexandria was an ancient Greek mathematician who was a resident of a Roman province (Ptolemaic Egypt); he was also an engineer who was active in his hometown of Alexandria. He is considered... |
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Ptolemy, Astronomer / Geographer
Claudius Ptolemy lived in Alexandria (in Egypt) from approx. 87 -150 AD. He was an astronomer, mathematician and geographer. He codified the Greek geocentric view of the universe, and rationalized the... |
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Dionysius, Introduction 'Anno Domini'
Dionysius Exiguus has left his mark conspicuously, for it was he who introduced the use of the Christian Era according to which dates are reckoned from the Incarnation, which he assigned to 25 March,... |
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Aryabhata, Inventor of the Digit Zero
Aryabhata is the first of the great astronomers of the classical age of India. He was born in 476 AD in Ashmaka but later lived in Kusumapura, which his commentator Bhaskara I (629 AD) identifies with... |
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