The Jews in Sicily, Volume 15 Notaries of Trapani

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The Astrolabe

An ancient instrument for solving problems of location and distance, as well as time

Astrolábon órganon is the word used in Ptolemaeus Syntaxis 5.1 to describe a form of armillary sphere consisting of both fixed and rotating rings for determining the ecliptic co-ordinates of stars. Also called astrolabe were two-dimensional representations of the celestial sphere: over fixed disks with a representation of the horizon of the earth (in each case for a specific geographic latitude) and its parallels up to the zenith lies a rotating representation of the heavens (called ‘spider’ or ‘net’) with zodiac and indicators for some of the brightest stars. On the back is an indicator (‘alidade’) with visor plates for calculating the height of the stars. The astrolabe allows its user to determine the hours of day and night, the positions of stars, and the height and depth of objects on earth (mountains, buildings, wells). The oldest extant descriptions of the flat, planispheric astrolabe come from Iohannes Philoponus, 6th century AD, and (in Syrian) from Severus Sebokht, c. 660 AD. Indirect references may date back as early as Theon (4th cent.). Between the 8th and the 9th centuries the Arabs appropriated the knowledge of the astrolabe. At the end of the 10th century and again in the 12th century, they passed it on to Western Europe, where astrolabes were constructed up until the 17th cent. Today, one Byzantine astrolabe (from 1062) is extant, as are some 750 Arabic-Islamic astrolabes and approximately the same number of European astrolabes.

This information is abstracted from Brill's New Pauly, the English edition of the authoritative Der Neue Pauly, Encyclopaedia of the Ancient World. The encyclopaedic coverage and high academic standard of the work, the interdisciplinary and contemporary approach and clear and accessible presentation have made the New Pauly the unrivalled modern reference work for the ancient world. For more information see www.brillsnewpauly.com or visit our website catalog: www.brill.nl/bnp
Brill’s New Pauly and the complete original Der Neue Pauly, the recognized standard reference works for students and scholars of the ancient world are also available online. This dual-language edition offers basic and advanced search facilities and is fully browsable. New English translations are added as they become available. See www.paulyonline.brill.nl for more information and a demo version.

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Publications & Services> Books> Book Series> The Jews in Sicily, Volume 15 Notaries of Trapani

The Jews in Sicily, Volume 15 Notaries of Trapani

Shlomo Simonsohn

Books

Available
Publication year: 2009


Series:	The Jews in Sicily, 15
ISBN-13 (i)The ISBN (International Standard Book Number) has been changed from 10 to 13 digits on 1 January 2007:	978 90 04 17383 5
ISBN-10:	90 04 17383 8

Cover:	Hardback
Number of pages:	xii, 745 pp.

List price:	€ 230.00 / US$ 340.00

Readership

All those interested in the history, especially social and economic, of Sicily, Italy, the Mediterranean, Aragon and Spain, mediaeval Jewry, Jewish and Hebraic Studies.

About the author(s)

Shlomo Simonsohn is Professor Emeritus of Jewish History at Tel Aviv University. He is a former rector of the university and former chairman of the Rectors and Presidents Conference of Israel. He has published extensively on the history of the Jews in Italy, the Papal See and the Jews, and cognate subjects.

This volume of the Documentary History of the Jews in Italy is the seventh of the second series, illustrating the history of the Jews in Sicily based on notarial and court records. It is the sequel to the eight volumes of the first series. Notarial deeds drawn up by public notaries in Palermo and elsewhere and cases brought before the Pretorian Court in Palermo present a kaleidoscopic picture of the private lives of the Jews of Sicily during the last three centuries of their presence on the island. They illustrate the economic, social and religious history of the Jewish minority and the relations with the Christian majority.

Much information is provided on trade and commerce, crafts and professions, religious and family life. Some light is thrown also on the internal life of the communities, particularly the larger ones, including organization and institutions, the synagogue, education, customs and traditions.

Although the surviving legal deeds present only a fraction of the total drawn up in those years, they are copious and abundant. Over 30,000 documents of this group were selected for publication, most appearing here for the first time. While some documents are discussed at length, the majority are only presented in summary form. The volume is provided with additional bibliography and indexes, while the introduction will appear at the end of the series.

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