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    Henry Rawlinson, Deciphered Cuneiform  
Sir Henry Creswicke Rawlinson, 1st Baronet GCB was an English soldier, diplomat and orientalist. He is sometimes referred to as the "Father of Assyriology." Knowledge of cuneiform was lost until 1835 when Henry Rawlinson, a British East Ind...
 
    Fraunhofer, Founding Stellar Spectroscopy, 1814  
Joseph Ritter von Fraunhofer is known for discovering the dark absorption lines known as Fraunhofer lines in the Sun's spectrum, and for making excellent optical glass and achromatic telescope objectives. In 1814 Fraunhofer invented the...
 
    Delambre, The Metric System  
In 1795 Jean Baptiste Joseph Delambre was admitted to the Bureau des Longitudes, becoming President in 1800. In 1801 he was appointed secretary to the Académie des Sciences making him the most powerful figure in science in France. In 17...
 
    Edward Jenner, Smallpox Vaccine - 1796  
Jenner was an English physician and pupil of John Hunter, a pioneer in comparative anatomy and morphology. Jenner's invaluable experiments, beginning in 1796 with the vaccination of eight-year-old James Phipps, proved that cowpox provided i...
 
    Lamarck, Theory of Evolution  
Jean-Baptiste de la Marck, often just known as "Lamarck", was a French soldier, naturalist, academic and an early proponent of the idea that evolution occurred and proceeded in accordance with natural laws. In the modern era, Lamarck is re...
 
    Smellie, 1st Encyclopædia Britannica - 1768  
William Smellie was a Scottish master printer, naturalist, antiquary, editor and encyclopedist. At the age of 28, Smellie was hired by Colin Macfarquhar and Andrew Bell to edit the first edition of the Encyclopædia Britannica, which appeare...
 
    William Herschel, Discovered Uranus - 1781  
Sir Frederick William Herschel was a German-born British astronomer and composer who became famous for discovering Uranus. He also discovered infrared radiation and made many other discoveries in astronomy. He played the cello besides th...
 
    Henry Cavendish, Discovery of Hydrogen  
Henry Cavendish was a British scientist noted for his discovery of hydrogen or what he called "inflammable air". He described the density of inflammable air, which formed water on combustion, in a 1766 paper "On Factitious Airs". Antoine La...
 
    Guillaume Le Gentil, French Astronomer  
Guillaume Le Gentil was a French astronomer. He discovered what are now known as the Messier objects M32, M36 and M38, as well as the nebulosity in M8, and he was the first to catalogue the dark nebula sometimes known as Le Gentil 3 (in the...
 
    James Lind, Developed Cure for Scurvy  
James Lind was a Scottish physician. He was a pioneer of naval hygiene in the Royal Navy. By conducting the first ever clinical trial, he developed the theory that citrus fruits cured scurvy. He argued for the health benefits of better vent...
 
    Jacob Bernoulli, Law of Large Numbers  
Jacob Bernoulli was one of the many prominent mathematicians in the Bernoulli family. He was an early proponent of Leibnizian calculus and had sided with Leibniz during the Leibniz–Newton calculus controversy. He is known for his numerous c...
 
    Isaac Newton, Theory of Gravitation  
Sir Isaac Newton was an English mathematician, astronomer, and physicist (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time and a key figure in the scientific...
 
    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 nu...
 
 
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...
 
 
470 - 544
  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, in the year 754 from the foundation of R...
 
       
         
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