A work rejecting Aristotle’s influence on this discipline, titled Concerning the Supposed Dependence of [this discipline] upon Philosophy, was written by Ali Qushji. An Ilkhanate scholar based in Maragheh developed the “Tusi-couple” in a commentary on a work in this discipline. The triquetrum was one of many devices used in this discipline described in a treatise by Jamshid al-Kashi. A work on this discipline that introduced Indian numerals to the Arabic world was named after the region of Sindh and worked on by al-Khwarizmi. Islamic books on this discipline were often based on the “Handy Tables” expanding on the Almagest; those books were known as zij (“zeej”), such as the Zij-i Sultani. For 10 points, Ulugh Beg set up a school for what discipline in Samarkand at an observatory? ■END■
ANSWER: astronomy [accept stargazing or observing stars or equivalents; accept zij until read; accept Concerning the Supposed Dependence of Astronomy upon Philosophy; prompt on mathematics or geometry or arithmetic by asking “what discipline were those used in?”; prompt on science; reject “astrology”] (The second line refers to al-Tusi’s Commentary on the Almagest.)
<AK, World History>
= Average correct buzz position