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Franciscus Sylvius

 

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Franciscus Sylvius



 
 


Franciscus Sylvius (15 March 1614, Hanau
Hanau

Hanau is a town in the Main-Kinzig-Kreis, in Hesse, Germany. It is located 25 km east of Frankfurt....
-19 November 1672, Leiden
Leiden

Media:Nl-Leiden.ogg is a city and municipality in the province of South Holland in the Netherlands and has 118,000 inhabitants. It forms a single urban area with Oegstgeest, Leiderdorp, Voorschoten, Valkenburg, Rijnsburg and Katwijk, with 254,000 inhabitants....
), born Franz de le Boë, was a German-born Dutch physician
Physician

A physician, medical practitioner, doctor of medicine, or medical doctor practices medicine, and is concerned with maintaining or restoring human health through the study, diagnosis, and treatment of disease and injury....
 and scientist
Scientist

A scientist, in the broadest sense, refers to any person that engages in a system activity to acquire knowledge or an individual that engages in such practices and traditions that are linked to schools of thought or philosophy....
 (chemist
Chemist

A chemist is a scientist trained in the science of chemistry. Chemists study the composition of matter and its properties such as density, acidity, size and shape....
, physiologist and anatomist) who was an early champion of Descartes', Van Helmont's and William Harvey
William Harvey

William Harvey was an English physician who was the first in the Western world to describe correctly and in exact detail the systemic circulation and properties of blood being pumped around the body by the heart....
's work and theories.

Sylvius, a Latinization of "de le Boë" translated as "of the woods", was born in Germany
Germany

Germany , officially the Federal Republic of Germany , is a country in Central Europe. It is bordered to the north by the North Sea, Denmark, and the Baltic Sea; to the east by Poland and the Czech Republic; to the south by Austria and Switzerland; and to the west by France, Luxembourg, Belgium, and the Netherlands....
 to an affluent family originally from Cambrai
Cambrai

Cambrai is a Communes of France in the Nord Departments of France in northern France. It is a Subprefectures in France of the department.Cambrai is the seat of Archdiocese of Cambrai whose jurisdiction was immense during the Middle Ages....
, but worked and died in Netherlands
Netherlands

The Netherlands is a country that is part of the Kingdom of the Netherlands. It is a parliamentary democratic constitutional monarchy. The Netherlands is located in North-West Europe, and bordered by the North Sea to the north and west, Belgium to the south, and Germany to the east....
.






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Franciscus Sylvius (15 March 1614, Hanau
Hanau

Hanau is a town in the Main-Kinzig-Kreis, in Hesse, Germany. It is located 25 km east of Frankfurt....
-19 November 1672, Leiden
Leiden

Media:Nl-Leiden.ogg is a city and municipality in the province of South Holland in the Netherlands and has 118,000 inhabitants. It forms a single urban area with Oegstgeest, Leiderdorp, Voorschoten, Valkenburg, Rijnsburg and Katwijk, with 254,000 inhabitants....
), born Franz de le Boë, was a German-born Dutch physician
Physician

A physician, medical practitioner, doctor of medicine, or medical doctor practices medicine, and is concerned with maintaining or restoring human health through the study, diagnosis, and treatment of disease and injury....
 and scientist
Scientist

A scientist, in the broadest sense, refers to any person that engages in a system activity to acquire knowledge or an individual that engages in such practices and traditions that are linked to schools of thought or philosophy....
 (chemist
Chemist

A chemist is a scientist trained in the science of chemistry. Chemists study the composition of matter and its properties such as density, acidity, size and shape....
, physiologist and anatomist) who was an early champion of Descartes', Van Helmont's and William Harvey
William Harvey

William Harvey was an English physician who was the first in the Western world to describe correctly and in exact detail the systemic circulation and properties of blood being pumped around the body by the heart....
's work and theories.

Sylvius, a Latinization of "de le Boë" translated as "of the woods", was born in Germany
Germany

Germany , officially the Federal Republic of Germany , is a country in Central Europe. It is bordered to the north by the North Sea, Denmark, and the Baltic Sea; to the east by Poland and the Czech Republic; to the south by Austria and Switzerland; and to the west by France, Luxembourg, Belgium, and the Netherlands....
 to an affluent family originally from Cambrai
Cambrai

Cambrai is a Communes of France in the Nord Departments of France in northern France. It is a Subprefectures in France of the department.Cambrai is the seat of Archdiocese of Cambrai whose jurisdiction was immense during the Middle Ages....
, but worked and died in Netherlands
Netherlands

The Netherlands is a country that is part of the Kingdom of the Netherlands. It is a parliamentary democratic constitutional monarchy. The Netherlands is located in North-West Europe, and bordered by the North Sea to the north and west, Belgium to the south, and Germany to the east....
. He studied in Leiden
Leiden University

Leiden University , located in the city of Leiden, is the List of oldest universities in continuous operation#Oldest Universities by Region university in the Netherlands....
 under Adolph Vorstius and Otto Heurnius and in Basel
University of Basel

The University of Basel is located at Basel, Switzerland....
 under Emmanuel Stupanus
Emmanuel Stupanus

Emmanuel Stupanus or Stuppan was a Switzerland physician and professor in Basel....
. In 1639 he returned to Leiden to lecture and from 1641 on he had a lucrative medical practice in Amsterdam
Amsterdam

Amsterdam is the Capital of the Netherlands and List of cities in the Netherlands with over 100,000 people of the Netherlands, located in the Provinces of the Netherlands of North Holland in the west of the country....
. In 1658 he was appointed the professor of medicine at the University of Leiden and was paid 1800 guilders which was twice the usual salary. He was the University's Vice-Chancellor in 1669-70.

In 1669 Sylvius founded the first academic chemical laboratory. For this reason, the building in which much of the Leiden University chemistry and natural science faculties are housed has the name Sylvius Laboratory.

He founded the Iatrochemical School of Medicine
Iatrochemistry

Iatrochemistry is a branch of both chemistry and medicine. Having its roots in alchemy, iatrochemistry seeks to provide chemical solutions to diseases and medical ailments....
, according to which all life and disease processes are based on chemical actions. That school of thought attempted to understand medicine in terms of universal rules of physics and chemistry. Sylvius also introduced the concept of chemical affinity as a way to understand the way the human body uses salts and contributed greatly to the understanding of digestion and of bodily fluids. The most important work he published was, "Praxeos medicae idea nova, 1671" (New idea in medical practice). His collected works were published in 1671. He was one of the earliest defenders of the circulation of the blood
Circulatory system

The circulatory system is an organ that moves nutrients, gases, and wastes to and from cells to help fight diseases and help stabilize body temperature and pH to maintain homeostasis....
 in Holland. He most famous students were Jan Swammerdam
Jan Swammerdam

Jan Swammerdam was a Netherlands biologist and microscopist. His work on insects demonstrated that the various phases during the life of an insect?Egg , larva, pupa, and adult?are different forms of the same animal....
, Reinier de Graaf, Niels Stensen and Burchard de Volder
Burchard de Volder

Burchard de Volder was a Dutch Republic natural philosopher.Born in a Mennonite family in Amsterdam, he first studied in Utrecht and from 1670 he studied philosophy at the University of Leiden under Franciscus Sylvius....
.

He researched the structure of the brain
Human brain

The human brain is the center of the human nervous system and is a highly complex organ. It has the same general structure as the brains of other mammals, but is over five times as large as the "average brain" of a mammal with the same body size....
 and discovered the cleft in the brain now known as Sylvian fissure
Lateral sulcus

The lateral sulcus is one of the most prominent structures of the human brain....
. Sylvius' angle is also named after him.

He is also credited with the invention of gin
Gin

Gin is a distilled beverage flavoured with juniper berries. Distilled gin is made by redistilling neutral grain spirit and raw cane sugar which has been flavoured with juniper berries....


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