The College of Sorbonne

A university meeting

Today is the birthday of the founder of the Sorbonne. The Collège of Sorbonne is arguably the best-known college in France, its name becoming synonymous with excellence, especially in the field of theology. It was founded in 1257 by Robert de Sorbon.

Robert de Sorbon (9 October 1201-15 August 1274) was born in a lower-class family in the Champagne-Ardennes region of northeast France, a wild part of the country prone to spawn legends and tales of adventure. Robert joined the church and studied at Reims and Paris. His devout bearing brought him to the attention of Louis IX, and he was named canon of Cambrai (next door to the Ardennes region) in 1251.

He became a teacher in 1253; in 1257 he created a college in Paris which he called Maison de Sorbonne [House of Sorbon] to teach theology to students who could not otherwise afford a university education. The Maison grew in popularity, however, and was endorsed by the King and by Pope Alexander IV (previously mentioned here and here). The College of Sorbonne grew to become the heart of the University of Paris (which produced such lights as Jean Buridan as well as conflicts). Sorbon became its chancellor until his death in 1274.

Sorbon created an academic environment that was (in the words of one scholar) "as opposed to mere hostel foundations and elementary forms of collegial living."

... Robert of Sorbon, formulated the central idea of the future college system in exemplary fashion: vivere socialiter et collegialiter, et moraliter, et scholariter*—a formulation which implies the existence of a study community organized in the form of a brotherhood and living together in regulated and moral fashion. [P. Glorieux, Les Origines du collège de Sorbon, quoted in A History of the University in Europe: Volume 1, Universities in the Middle Ages]

Among the students were Pope Clement VI and Nicholas Oresme.

*[roughly] "To live socially and collegially and morally and scholarly"

Nicholas Oresme

Nicholas Oresme (c.1325-1382) likely came from humble beginnings; we assume this because he attended the College of Navarre, a royally funded and sponsored college for those who could not afford the University of Paris. He had his master of arts by 1342, and received his doctorate in 1356. He became known as an economist, philosopher, mathematician and physicist.

One of his published works was:

Livre du ciel et du monde
(The Book of Heaven and Earth)
In this work he discussed the arguments for and against the rotation of the Earth.

• He dismissed the notion that a rotating Earth would leave all the air behind, or cause a constant wind from east to west, pointing out that everything with the Earth would also rotate, including the air and water.
• He rejects as figures of speech any biblical passages that seem to support a fixed Earth or a moving sun. (Keep in mind even today we unanimously speak about the beauty of the sun setting when it's really the Earth rising!)
• He points out that it makes more sense for the Earth to move than for the (presumably more expansive and massive) heavenly spheres and Sun to move.
• He assures his readers that all the movements we see in the heavens could be accounted for by a rotating Earth.
• Then he assures the reader that everyone including himself thinks the heavens move around the earth, and after all he has no real evidence to the contrary!

Years later, Giordano Bruno (1548-1600) wrote his theories out in a way so similar to Oresme's that it is assumed he had access to Oresme's writing.

The Rotating Earth

Nicholas Oresme

While re-examining Aristotle, Jean Buridan used observation and brainpower to anticipate some of the ideas we attribute to Galileo and Newton. He carried his ideas further when he put his mind to the question of the Earth's movement.

For most scholars of the Classical and early Medieval eras, the Earth was fixed, and the Heavens rotated around the Earth once each day. Buridan didn't like this: the Heavens are so much larger than the Earth; why would God design such an inelegant system? Moving the Earth would be easier.

Ptolemy knew this could not be, because if the Earth were rotating, there would be a constant rushing of wind as the air of the atmosphere passed over the land underneath it. Buridan scoffed at this: the atmosphere would be rotating just as the land does. There was no reason to dismiss the idea that Earth rotated daily.

For Buridan, however, empirical evidence was crucial. Of course, his predecessors argued, the Earth clearly does not move; we can see that. Buridan, however, likened the situation to being in a boat on a river. An observer on a second boat that was tied to the bank would see the first boat moving, but if the observer on the second boat could not see the surrounding landscape, then he would not know which of the boats were moving. The problem, Buridan knew, was that without an outside frame of reference, one cannot tell if it is the Earth or the Heavens that is moving. He needed an experiment, and he thought of one.

...and that's when he made his mistake.

Here was his idea: shoot an arrow straight up above your head. If it comes back down where you are standing, then the Earth is stationary. If the Earth rotated under it, then the arrow would come down somewhere off to the side.

He didn't realize that the same property that moves the atmosphere along with the ground would carry the arrow along as well. It would be Buridan's most brilliant student, Nicholas Oresme (c.1325-1382), who would realize and state that the arrow moves along with the Earth and atmosphere. Lacking a way to definitively prove his ideas, however, Oresme would ultimately fall back on the Bible for guidance on this issue.

Nicholas Oresme

Does the Earth rotate?

Born in  the 1320s, Nicholas (or Nicolas) Oresme likely came from humble beginnings; we assume this because he attended the College of Navarre, a royally funded and sponsored college for those who could not afford the University of Paris. He had his master of arts by 1342, and received his doctorate in 1356. ne of his published works was:

Livre du ciel et du monde
(The Book of Heaven and Earth)
In this work he discussed the arguments for and against the rotation of the Earth.

• He dismissed the notion that a rotating Earth would leave all the air behind, or cause a constant wind from east to west, pointing out that everything with the Earth would also rotate, including the air and water.
• He rejects as figures of speech any biblical passages that seem to support a fixed Earth or a moving sun. (Keep in mind even today we unanimously speak about the beauty of the sun setting when it's really the Earth rising!)
• He points out that it makes more sense for the Earth to move than for the (presumably more expansive and massive) heavenly spheres and Sun to move.
• He assures his readers that all the movements we see in the heavens could be accounted for by a rotating Earth.
• Then he assures the reader that everyone including himself thinks the heavens move around the earth, and after all he has no real evidence to the contrary!