Ptolemy in the Middle Ages

David Juste, Research Leader of the project Ptolemaeus Arabus et Latinus

Ptolemaeus Arabus et Latinus ( is a new project of the Bavarian Academy of Science and Humanities (Munich), established by the Federal Republic of Germany and the German federal states for a period of 25 years beginning in 2013. The project is dedicated to the edition and study of the Arabic and Latin versions of Ptolemy’s astronomical and astrological texts. These include Ptolemy’s authentic works (Almagest, Tetrabiblos, Planetary Hypotheses, Planisphaerium, Phases of the Fixed Stars and Analemma); works falsely attributed to him (mainly the influential Centiloquium, but also some 30 less-known texts); and the Arabic and Latin commentaries thereupon up to the seventeenth century. Most of these texts are unpublished in their Arabic and Latin versions and have received little attention in modern scholarship. In this talk, David Juste will give a brief presentation of the project and focus on the reasons behind it, namely why the Arabic and Latin texts matter in the wider context of the history of Western science.


London Mathematical Laboratory, 14 Buckingham Street, London, WC2N 6DF

Date & Time

Tuesday 10th February 2015 at 13.00hrs


LML Seminars are free to attend and no registration is required.