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    The Zodiac, Divided into Twelve Star Signs  
The zodiac is an area of the sky that extends approximately 8° north or south (as measured in celestial latitude) of the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year. The paths of the Moon a...
 
    Alfonso X of Castile, El Sabio, The Wise  
Alfonso X, called the Wise (Spanish: el Sabio), was the King of Castile, León and Galicia from 30 May 1252 until his death. During the Imperial election of 1257, a dissident faction chose him to be King of the Romans (Latin: Rex Romanorum;...
 
    Paracelsus, Father of Toxicology  
Paracelsus was an alchemist, physician, astrologer, and general occultist. Paracelsus rejected Gnostic traditions, but kept much of the Hermetic, neoplatonic, and Pythagorean philosophies from Ficino and Pico della Mirandola; however, Herme...
 
    Nostradamus, The Prophecies  
Nostradamus was a French apothecary and reputed seer who published collections of prophecies that have since become famous worldwide. He is best known for his book Les Propheties, the first edition of which appeared in 1555. Since the publi...
 
    Napier, Inventor of Logarithms  
John Napier was a Scottish mathematician, physicist, astronomer & astrologer, and also the 8th Laird of Merchistoun. He was the son of Sir Archibald Napier of Merchiston. John Napier is most renowned as the discoverer of the logarithm. Napi...
 
    Johannes Kepler, Laws Planetary Motion  
Johannes Kepler was a German mathematician, astronomer, and astrologer. A key figure in the 17th century scientific revolution, he is best known for his laws of planetary motion, based on his works Astronomia nova, Harmonices Mundi, and Epi...
 
    Andreas Cellarius, Dutch-German Cartographer  
Andreas Cellarius was a Dutch-German cartographer, best known for his Harmonia Macrocosmica of 1660, a major star atlas, published by Johannes Janssonius in Amsterdam. He was born in Neuhausen (now a part of Worms), and was educated in H...
 
    Cavalieri, Infinitesimal Calculus  
Bonaventura Francesco Cavalieri was an Italian mathematician. He is known for his work on the problems of optics and motion, work on the precursors of infinitesimal calculus, and the introduction of logarithms to Italy. Cavalieri's principl...
 
       
 
         
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