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    Pharaoh Khufu, Pyramid of Cheops, Giza  
Khufu (in Greek known as Cheops) was a Pharaoh of Ancient Egypt's Old Kingdom. He reigned from around 2589 to 2566 B.C. Khufu was the second pharaoh of the Fourth Dynasty. He is generally accepted as being the builder of the Great Pyramid of Giza, on...
 
    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...
 
    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...
 
    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...
 
    Antikythera Mechanism, Astronomical Clock  
The Antikythera mechanism is an ancient mechanical computer designed to calculate astronomical positions. It was recovered in 19001901 from the Antikythera wreck. Its significance and complexity were not understood until decades later. Its time of c...
 
 
10 - 70
  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 the greatest experimenter of antiquity and his wor...
 
 
476 - 550
  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 Patilputra (modern Patna). Aryabhata gave the...
 
    Fibonacci, Hindu-Arabic Numeral System  
Leonardo Pisano Bigollo or simply Fibonacci, was an Italian mathematician, considered by some "the most talented western mathematician of the Middle Ages." Fibonacci is best known to the modern world for the spreading of the Hindu-Arabic numeral syst...
 
    On the Revolutions of Heavenly Spheres  
Nicolaus Copernicus: The Ptolemaic system of the universe, with the earth at the center, had held sway since antiquity as authoritative in philosophy, science, and church teaching. Following his precise observations of the heavenly bodies, Nicolaus C...
 
    Visboek, Adriaen Coenensz  
In 1577 begint op de leeftijd van 63 jaar de Scheveninger Adriaen Coenensz aan zijn Visboek. In drie jaar tijd verzamelt hij daarin allerlei wetenswaardigheden over de zee, de kusten en kustwateren, de visgronden en de zeedieren. Hij schrijft er met...
 
    Invention of Napier's Bones  
Napier's bones are an abacus invented by John Napier for calculation of products and quotients of numbers. Also called Rabdologia. Napier published his invention of the rods in a work printed in Edinburgh at the end of 1617 also entitled Rabdolog...
 
    Isaac Newton, Theory of Gravitation  
Sir Isaac Newton was an English physicist and mathematician who is widely recognised as one of the most influential scientists of all time and a key figure in the scientific revolution. His book "Mathematical Principles of Natural Philosophy", first...
 
    Thomas Savery, Inventor Steam Engine - 1698  
Thomas Savery was an English inventor. Initially interested in naval applications of engineering (he designed an early paddle-wheel), Savery then became interested in pumping machines. On July 2, 1698 he patented an early steam engine, and in 1702 he...
 
    The Royal Society of London  
The origins of the Royal Society lie in a group of men who began meeting in the mid-1640s to discuss the new philosophy. Its official foundation date is 28 November 1660, when 12 of them met at Gresham College after a lecture by Christopher Wren, the...
 
    John Harrison, Solved Longitude - 1773  
John Harrison was a self-educated English carpenter and clockmaker. He invented the marine chronometer, a long-sought after device for solving the problem of establishing the East-West position or longitude of a ship at sea, thus revolutionising and...
 
       
 
         
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