Invention of printing machines by Johann Gutenberg (1394 – 1468) and et al has promoted the
publishing business of books in general aroused in Europe in the fifteenth century. This has accelerated
the translation and publishing of many Arabic books of astrology including
TETRABIBLOS of PTOLEMY
with many readers from the medical
researchers concerned. As they were busy in studying the problems of the rapid infection of
PLAGUE since
the fourteenth century in Europe, they have tried to find a hint to prevent the infection for the knowledge
of astrology explored.
Regiomontanus (1436 – 1476) was a mathematician in the southern Germany. His system of house
division or the Regiomontanus System has been well known for the people live in the higher latitude.
John Kepler (1571 – 1630) was a famous astronomer and he wrote improved astronomical tables.
He was also active in the astrological works and described on the various aspects formed between two
moving sky bodies located. Although he could point out the astrological influence detected by human
on earth, however, he could not point out the scientific reason of mechanism of influence.
Astronomers were blamed Kepler as he has sold his soul to the evil of astrology. Kepler died in distress.
Since then until nowadays, no one can study the scientific reason to explore the mechanism of
astrological prediction in depth other than the result of Kepler in the sixteenth century, but only
satisfied in finding a good evidence of fits result studied.
Placidus (1603 – 1668) was a member of noble house of Titis Italy. His system of house division is
one of the most popular methods to prepare a horoscope of astrology.
がヨーロッパにも伝えられるようになりました。 当時の占星学の
知識は医学研究者に重要な研究要素を与えたものでしたが、十四世紀以来、欧州全土を襲った黒死病（ペスト）
の流行原因が不明でしたから、人々が占星学の知識に頼ろうとした動機があったのです。