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He also played an importqant role in the development of the Western or Sicilian school of Greek medicine.He cured a plague at the Sicilian city of Selinus and claimed he was a god.
To account for real change, he assumed that there must be more than one kind of matter, and he postulated four roots as elements; earth, air, fire, and water.The treatise was translated into English in 1912 by future U. president Herbert Hoover and his wife, Lou Henry Hoover. He became a devoted follower of Erasmus, who wrote a foreward to Agricola's first book on mining and metallurgy (1930).While town physician of Joachimsthal (now Jachymov, Czech Republic), he became intensely interested in all aspects of the mining and metallurgy industry by which the town thrived and began a 25-year study of the subject, which culminated in hos posthumously published masterpiece.He printed the 42-line Gutenberg Bible (c.1455) but in the end he lost a suit from one of his creditors, who confiscated the type for the Bible. Aided by Konrad Humery, he was able to set up another press, but little is known of his work thereafter.
The impact of printing was enormous - it led to an almost instant mass production of books and truly initiated the information age.
The work had a hostile reception when it was published (1543), as it challenged the ancient teaching of the Earth as the centre of the universe.