799-886 - Many of his works were translated into Latin and were well known in amongst many European astrologers, astronomers, and mathematicians (Mathematici) during the European Middle Ages; here was known by his Latinized name "Albumasar." It was not until later in the 12th century that the original books of Aristotle on nature began to become available in Latin. The works of Aristotle on logic had been known earlier, and Aristotle was generally recognized as "the master of logic." But during the course of the 12th century, Aristotle was transformed into the "master of those who know," and in particular a master of natural philosophy, or the scientific theory of natural things. It is especially interesting that the work of Albumasar (or Balkhi) in question is a treatise on astrology. Its Latin title is Introductorium in Astronmiam, a translation of the Arabic Kitab al-mudkhal al-kabir ila 'ilm ahkam an-nujjum, written in Baghdad in the year 848 A.D.
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