Doctors 15th century
Nicolaus Copernicus (Polish: Mikołaj Kopernik) was a Polish and German scientist, astronomer, mathematician, mechanic, economist, and Renaissance canonist. He was the author of the heliocentric system of the world, which initiated the first scientific revolution.
Copernicus studied the humanities, including astronomy and astrology, at the University of Krakow and at the University of Bologna in Italy. Together with other astronomers, including Domenico Maria de Novara (1454-1504), he was engaged in observing the stars and planets, recording their movements and eclipses. At the time, medicine was closely related to astrology, as the stars were believed to influence the human body, and Copernicus also studied medicine at the University of Padua between 1501 and 1503.
Nicolaus Copernicus, based on his knowledge and observations, was the first to suggest that the Earth is a planet that not only revolves around the sun every year, but also rotates once a day on its axis. This was in the early 16th century when people believed the Earth to be the center of the universe. The scientist also suggested that the Earth's rotation explained the rising and setting of the Sun, the movement of the stars, and that the cycle of the seasons was caused by the Earth's rotation around itself. Finally, he correctly concluded that the Earth's motion in space causes the planets to move backwards across the night sky, the so-called retrograde direction.
Although Copernicus' model was not completely correct, it laid a solid foundation for future scientists, such as Galileo, who developed and improved mankind's understanding of the motion of celestial bodies. Copernicus completed the first manuscript of his book De Revolutionibus Orbium Coelestium (On the Rotation of the Celestial Spheres) in 1532. In it, the astronomer outlined his model of the solar system and the paths of the planets. However, he published the book only in 1543, just two months before his death, and dedicated it to Pope Paul III. Perhaps for this reason, and also because the subject matter was too difficult to understand, but the church did not finally ban the book until 1616.
Bonetus de Latis or Jacob ben Emanuel Provenzale was a French physician and astrologer of Jewish origin.
Originally from Provence, France, he was a rabbi, and in Rome became physician to Pope Alexander VI and later Pope Leo X. Latis is known mainly as the inventor of the ring-shaped sundial, an astronomical circular dial that could be used to measure solar and stellar altitudes and determine the time with great accuracy both day and night. These clocks were portable and easy to use for navigation. Latis also wrote a treatise known among scholars about the astrolabe ring (1492-1493).
Paolo Ricci (Italian: Paolo Ricci, Latin: Paulus Ricius, German: Paul Ritz), also known as Ritz, Riccio, or Paulus Israelita, was a humanist convert from Judaism, a writer-theologian, Kabbalist, and physician.
After his baptism in 1505 he published his first work, Sol Federis, in which he affirmed his new faith and sought through Kabbalah to refute modern Judaism. In 1506 he moved to Pavia, Italy, where he became a lecturer in philosophy and medicine at the university and met Erasmus of Rotterdam. Ricci was also a learned astrologer, a professor of Hebrew, philosophy, theology, and Kabbalah, a profound connoisseur and translator of sacred texts into Latin and Hebrew, and the author of philosophical and theological works.
Paolo Ricci was a very prolific writer. His Latin translations, especially the translation of the Kabalistic work Shaare Orach, formed the basis of the Christian Kabbalah of the early 16th century.
Eucharius Rösslin the Elder or Eucharius Rößlin was a German medieval scholar, physician-midwife, and pharmacist.
In 1493 Eucharius became apothecary in Freiburg, and 13 years later was elected physician of the city of Frankfurt am Main. From there he moved to Worms, in the service of Katherine, Princess of Saxony and Duchess of Brunswick and Lüneburg. One of his duties was to oversee and supervise the city's midwives, whose ignorance led to a high infant and female mortality rate.
In order to remedy this, Eucharius wrote and published a book on midwifery called Der Rosengarten ("The Rose Garden for Pregnant Women and Midwives") in Strasbourg in 1513. It was in German and contained several engravings. The book proved very popular and soon became the standard medical textbook for midwives. For nearly two centuries it was the authoritative guide to midwifery in Europe, translated into seven languages and reprinted over a hundred times.
In 1517 Rösslin returned to work in Frankfurt and remained in that position until his death in 1526. His son, also named Eucharius Rösslin, succeeded him as city physician.