Lunar calendars suffer from an inherent uncertainty in the length of each month and the number of months in the year. Variable atmospheric conditions, weather and the acuity of the eye of an observer mean that the first sighting of the new moon crescent can never be known in advance. Calendars which rely on such observations to define the beginning of a new month therefore suffer from this lack of certainty as to whether a month will begin on a given day or the next. The papers in this volume address the question of how ancient and medieval societies lived with the uncertainties of a lunar calendar. How did lack of foreknowledge of the beginning of the month impact upon administration, the planning of festivals, and historical record keeping? Did societies replace the observation of the new moon crescent with schematic calendars or calendars based upon astronomical calculations and what were the ideological and practical consequences of such a change? The contributors to this volume address these topics from the perspectives of a variety of Ancient Near Eastern, Jewish, Ancient and Medieval European, Asian and American cultures.

A comprehensive edition and commentary of a late antique codex Mathematics, Metrology, and Model Contracts is a comprehensive edition and commentary of a late antique codex. The codex contains mathematical problems, metrological tables, and model contracts. Given the nature of the contents, the format, and quality of the Greek, the editors conclude that the codex most likely belonged to a student in a school devoted to training business agents and similar professionals. The editors present here the first full scholarly edition of the text, with complete discussions of the provenance, codicology, and philology of the surviving manuscript. They also provide extensive notes and illustrations for the mathematical problems and model contracts, as well as historical commentary on what this text reveals about late antique numeracy, literacy, education, and vocational training in what we would now see as business, law, and administration. The book will be of interest to papyrologists and scholars who are interested in the history and culture of late antiquity, the history of education, literacy, the ancient economy, and the history of science and mathematics.

Until very recently, the idea of ancient Jewish sciences would have been considered unacceptable. Since the 1990s, Early Modern and Medieval Science in Jewish sources has been actively studied, but the consensus was that no real scientific themes could be found in earlier Judaism. This work points them out in detail and posits a new field of research: the scientific activity evident in the Dead Sea Scrolls and early Jewish pseudepigrapha. The publication of new texts and new analyses of older ones reveals crucial elements that are best illuminated by the history of science, and may have interesting consequences for it. The contributors evaluate these texts in relation to astronomy, astrology, and physiognomy, marking the first comprehensive attempt to account for scientific themes in Second Temple Judaism. They investigate the meaning and purpose of scientific explorations in an apocalyptic setting. An appreciation of these topics paves the way to a renewed understanding of the scientific fragments scattered throughout rabbinic literature. The book first places the Jewish material in the ancient context of the Near Eastern and Hellenistic worlds. While the Jewish texts were not on the cutting edge of scientific discovery, they find a meaningful place in the history of science, between Babylonia and Egypt, in the time period between Hipparchus and Ptolemy. The book uses recent advances in method to examine the contacts and networks of Jewish scholars in their ancient setting. Second, the essays here tackle the problematic concept of a national scientific tradition. Although science is nowadays often conceived as universal, the historiography of ancient Jewish sciences demonstrates the importance of seeing the development of science in a local context. The book explores the tension between the hegemony of central scientific traditions and local scientific enterprises, showing the relevance of ancient data to contemporary postcolonial historiography of science. Finally, philosophical questions of the demarcation of science are addressed in a way that can advance the discussion of related ancient materials. Online edition available as part of the NYU Library's Ancient World Digital Library and in partnership with the Institute for the Study of the Ancient World (ISAW).

Time has always held a fascination for human beings, who have attempted to relate to it and to make sense of it, constructing and deconstructing it through its various prisms, since time cannot be experienced in an unmediated way. This book answers the needs of a growing community of scholars and readers who are interested in this interaction. It offers a series of innovative studies by both senior and younger experts on various aspects of the construction of time in antiquity. Some articles in this book contain visual material published for the first time, while other studies update the field with new theories or apply new approaches to relevant sources. Within the study of antiquity, the book covers the disciplines of Classics and Ancient History, Assyriology, Egyptology, Ancient Judaism, and Early Christianity, with thematic contributions on rituals, festivals, astronomy, calendars, medicine, art, and narrative.