Johannes de Sacrobosco
Biografie1195 - 1256
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The scientist Johannes de Sacrobosco, also known as John of Holywood, was educated at Oxford. He became a canon of the Order of St Augustine at the monastery of Holywood in Nithsdale. About 1220 Sacrobosco went to study in Paris. In 1221, he was appointed a teacher at the University of Paris.
It is presumed that at some point he was enrolled as a regent master lecturing on mathematics and astronomy. After his death in France, which may have occurred in 1256, a memorial was constructed in the monastery of St. Mathurin, closely associated with the University of Paris. Sacrobosco’s was the author of the most popular and enduring textbooks of the middle ages. His Algorismus was a tract on numerals and arithmetic. The most famous of his works, De Sphaera, a basic account of the spherical geometry founded on the mathematical astronomy of Ptolemy and his Arabic commentators, was composed around 1230. It rapidly achieved popularity, and was reproduced until the seventeenth century.
It is presumed that at some point he was enrolled as a regent master lecturing on mathematics and astronomy. After his death in France, which may have occurred in 1256, a memorial was constructed in the monastery of St. Mathurin, closely associated with the University of Paris. Sacrobosco’s was the author of the most popular and enduring textbooks of the middle ages. His Algorismus was a tract on numerals and arithmetic. The most famous of his works, De Sphaera, a basic account of the spherical geometry founded on the mathematical astronomy of Ptolemy and his Arabic commentators, was composed around 1230. It rapidly achieved popularity, and was reproduced until the seventeenth century.
