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    Imhotep, Architect Pyramid of Djoser  
Imhotep was an Egyptian polymath who served under the Third Dynasty king Djoser as chancellor to the pharaoh and high priest of the sun god Ra (or Re) at Heliopolis. He is considered by some to be the earliest known architect and engineer and physici...
 
    Thales, 1st Greek Philosopher  
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 (611 BC - 545 BC) and he was the first natural philos...
 
    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 Greece the gnomon (the vertical rod whose shadow i...
 
    Pythagoras of Samos  
Pythagoras of Samos was an Ionian Greek philosopher, mathematician, and founder of the religious movement called Pythagoreanism. Most of the information about Pythagoras was written down centuries after he lived, so very little reliable information i...
 
    Leucippus, 1st Theory of Atomism  
Leucippus or Leukippos was the first Greek to develop the theory of atomism the idea that everything is composed entirely of various imperishable, indivisible elements called atoms which was elaborated in far greater detail by his pupil and succe...
 
    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 physician trained at the Dream temple of Kos, and may ha...
 
    Democritus, 1st Atomic Theory  
Democritus ("chosen of the people") was an Ancient Greek philosopher born in Abdera, Thrace, Greece. He was an influential pre-Socratic philosopher who formulated an atomic theory for the cosmos. His exact contributions are difficult to disentangle f...
 
    Aristotle, Greek Philosopher  
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, metaphysics, logic...
 
    Pytheas, Circumnavigated Britain  
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, circumnav...
 
    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 mathematics teacher of all time. However little is kno...
 
    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 moon during an eclipse of the moon (now that Thales...
 
    Archimedes of Syracuse, Eureka!  
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 considered the gre...
 
    Eratosthenes, Measuring the Earth  
Eratosthenes of Cyrene was a Greek mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexandria. He invented the discipline of geography, including the terminolog...
 
    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 Hipparchus's research and recorded some of it in his...
 
    Posidonius, Greek Philosopher  
Posidonius of Apameia or of Rhodes was a Greek Stoic philosopher, politician, astronomer, geographer, historian and teacher native to Apamea, Syria. He was acclaimed as the greatest polymath of his age. None of his vast body of work can be read in it...
 
       
 
         
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