Graeco-Arabic Astronomy for Twelfth-Century Latin Readers


Book Description

This volume makes available two hitherto unpublished Latin texts on astronomical tables, written by Abraham Ibn Ezra and Robert of Chester, which together shed new light on the mid-twelfth-century assimilation of Graeco-Arabic mathematical astronomy in Christian Europe.




Graeco-Arabic Astronomy for Twelfth-Century Latin Readers: Ptolomeus Et Multi Sapientum (Abraham Ibn Ezra Latinus) -- Robert of Chester, Liber Canonum


Book Description

This volume makes available two hitherto unpublished Latin texts on astronomical tables, written by Abraham Ibn Ezra and Robert of Chester, which together shed new light on the mid-twelfth-century assimilation of Graeco-Arabic mathematical astronomy in Christian Europe.




Down to the Hour: Short Time in the Ancient Mediterranean and Near East


Book Description

"Clock time", with all its benefits and anxieties, is often viewed as a "modern" phenomenon, but ancient Mediterranean and Near Eastern cultures also had tools for marking and measuring time within the day and wrestled with challenges of daily time management. This book brings together for the first time perspectives on the interplay between short-term timekeeping technologies and their social contexts in ancient Egypt, Babylon, Greece, and Rome. Its contributions denaturalize modern-day concepts of clocks, hours, and temporal frameworks; describe some of the timekeeping solutions used in antiquity; and illuminate the diverse factors that affected how individuals and communities structured their time.




Calendars in the Making: The Origins of Calendars from the Roman Empire to the Later Middle Ages


Book Description

Calendars in the Making investigates the Roman and medieval origins of several calendars we are most familiar with today, including the Christian liturgical calendar, the Islamic calendar, and the week as a standard method of dating and time reckoning.




The Sanskrit Astronomical Table Text Brahmatulyasāraṇī


Book Description

"The 17th-century Brahmatulyasāraṇīis a rich repository of information about Indian mathematical astronomy and its genres of scientific writing in Sanskrit. This painstaking critical edition, translation, and technical analysis of the work includes detailed technical background about its content and relation to the seminal 12th-century astronomical handbook Karaṇakutūhala. This book explores important contextual information about the role and study of numerical tables in pre-modern astronomy, as well as the many challenges arising from critically editing numerical data in the Indian astral sciences"--




Numbers and Numeracy in the Greek Polis


Book Description

This is a wide-ranging study of numbers as a social and cultural phenomenon in ancient Greece, revealing both the instrumentality of numbers to polis life and the complex cultural meanings inherent in their use.




Hippocratic Commentaries in the Greek, Latin, Syriac and Arabic Traditions


Book Description

This collection of articles presents cutting-edge scholarship in Hippocratic studies in English from an international range of experts. It pays special attention to the commentary tradition, notably in Syriac and Arabic, and its relevance to the constitution and interpretation of works in the Hippocratic Corpus.




The Circulation of Astronomical Knowledge in the Ancient World


Book Description

Astronomical and astrological knowledge circulated in many ways in the ancient world: in the form of written texts and through oral communication; by the conscious assimilation of sought-after knowledge and the unconscious absorption of ideas to which scholars were exposed. The Circulation of Astronomical Knowledge in the Ancient World explores the ways in which astronomical knowledge circulated between different communities of scholars over time and space, and what was done with that knowledge when it was received. Examples are discussed from Mesopotamia, Egypt, the Greco-Roman world, India, and China.




The Jewish Calendar Controversy of 921/2 CE


Book Description

In the year 921/2, the Jewish leaders of Palestine and Babylonia disagreed on how to calculate the calendar. This led the Jews of the entire Near East to celebrate Passover and the other festivals, through two years, on different dates. The controversy was major, but it became forgotten until its late 19th-century rediscovery in the Cairo Genizah. Faulty editions of the texts, in the following decades, led to much misunderstanding about the nature, leadership, and aftermath of the controversy. In this book, Sacha Stern re-edits the texts completely, discovers many new Genizah sources, and challenges the historical consensus. This book sheds light on early medieval Rabbanite leadership and controversies, and on the processes that eventually led to the standardization of the medieval Jewish calendar.




Essays on Medieval Computational Astronomy


Book Description

During the Middle Ages and early modern times tables were a most successful and economical way to present mathematical procedures and astronomical models and to facilitate computations. Before the sixteenth century astronomical models introduced by Ptolemy in Antiquity were rarely challenged, and innovation consisted in elaborating new methods for calculating planetary positions and other celestial phenomena. Essays on Medieval Computational Astronomy includes twelve articles that focus on astronomical tables, offering many examples where the meaning and purpose of such tables has been determined by careful analysis. In evaluating the work of medieval scholars we are mindful of the importance of applying criteria consistent with their own time, which may be different from those appropriate for other periods.