Article ID: CBB001211757

A Table of New Moons from 1501 to 1577 in a Hebrew Fragment Preserved in the John Rylands Library (2013)

unapi

A hitherto unknown set of two tables, preserved on a single sheet inscribed on both sides in Hebrew, which was originally in the Cairo Geniza, is presented and analyzed. The purpose of these anonymous tables is to convert dates from the Jewish calendar to the Julian calendar for a 76-year cycle, beginning in 1501; the underlying method seems to be unprecedented. The basic information for each year is the date in March in the Julian calendar that corresponds to 1 Nisan in the Jewish calendar. It is suggested that Abraham Zacut (d. 1515) is the author of these tables.

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Authors & Contributors
Goldstein, Bernard R.
Chabás, José
Stern, Sacha
Sela, Shlomo
Kolachana, Aditya
Vyas, Pravesh
Journals
Aleph: Historical Studies in Science and Judaism
Science
Sciamvs: Sources and Commentaries in Exact Sciences
Medieval Encounters
Journal for the History of Astronomy
Archive for History of Exact Sciences
Publishers
CNRS Éd
Brill
Concepts
Jewish civilization and culture
Astronomy
Manuscripts
Tables; catalogs; lists
Primary literature (historical sources)
Calendars
People
Zacut, Abraham
Galeano, Moses ben Judah
Dinakara
Abraham Ben Ezra
Maimonides
Ibn al-Shāṭir, ʿAlā al-Dīn ʿAlī Ibn Ibrāhīm
Time Periods
Medieval
16th century
Ancient
15th century
Precolumbian period (America)
9th century
Places
Spain
Guatemala
Portugal
North Africa
Italy
Egypt
Institutions
Bayerische Staatsbibliothek (Munich)
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