World Library  
Flag as Inappropriate
Email this Article

Mordecai Comtino

Article Id: WHEBN0011354092
Reproduction Date:

Title: Mordecai Comtino  
Author: World Heritage Encyclopedia
Language: English
Subject: Bayezid II, Hebrew astronomy, Elijah Bashyazi, Hayyim Jonah Gurland, Caleb Afendopolo
Publisher: World Heritage Encyclopedia

Mordecai Comtino

Mordecai ben Eliezer Comtino (lived at Adrianople and Constantinople; died in the latter city between 1485 and 1490) was a Turkish Jewish Talmudist and scientist.

The earliest date attached to any of his writings is 1425. The form of his family name is doubtful, and has been transcribed by modern scholars as "Comtino." Mordecai's biographer, Jonah Hayyim Gurland, uses the form "Kumatyano," a name which he found still in use in Turkey (Geiger, in "Wiss. Zeit. Jüd. Theol." iii.445; idem, "Melo-Chofnajim," p. 13). He was the pupil of Enoch Saporta, a distinguished Talmudist, known for his cultivation of the sciences and his tolerance toward the Karaites.


Mordecai was the teacher not only of Elijah Mizraḥi, but also of the Karaites Elijah Bashyaẓi and Caleb Afendopolo. Though an opponent of their teachings, Mordecai was held in honor by the Karaites, two of his piyyuṭim being included in their Siddur (Landshut, "'Ammude ha-'Abodah," p. 200).

Most of his works have come down in manuscript, selections from which have been published by Gurland, in his "Ginze," part iii., 1866. The scientific bent of his mind is shown in his commentary to the Pentateuch (MSS. Paris, Nos. 265, 266; St. Petersburg, No. 51), in the preface to which he speaks of his researches in grammar, logic, physics, astronomy, arithmetic, geometry, and metaphysics. This commentary, in which he especially criticized Abraham ibn Ezra, was attacked by Shabbethai ben Malchiel Kohen ("Hassagot," c. 1460), which attack Mordecai answered in his "Teshubot Hassagot" (Steinschneider, "Cat. Codicum Hebr. Bibl. Acad. Lugduno-Batavæ," pp. 202–207). He also wrote commentaries to Ibn Ezra's treatises "Yesod Morah" (dedicated to his pupil Joseph Rachizi), "Sefer ha-Shem," and "Sefer ha-Eḥad" (MS. Paris, No. 661; compare Adolf Neubauer, "Cat. Bodl. Hebr. MSS." col. 436), and a commentary to Maimonides's "Millot ha-Higgayon," printed in Warsaw, 1865.

Mordecai was a teacher of mathematics, and did much to advance the study of the exact sciences in Turkey. In his commentaries to Ibn Ezra he has often occasion to touch upon such subjects. His chief works in this branch are: a treatise in two parts on arithmetic and geometry, in which he follows partly the Greek and Latin authors, partly the Mohammedan (MSS. Berlin, No. 49; Brit. Mus. 27,107 A; Paris, 1031, 5; St. Petersburg, 343, 344, 345, 346); "Perush Luḥot Paras," a commentary written in 1425 on the astronomical tables of Yezdegerd, tables already treated of by Solomon b. Elijah Sharbiṭ ha-Zahab (MSS. Paris, Nos. 1084, 1085; St. Petersburg, 359); glosses to Euclid (MS. Günzburg, No. 340, 5); an essay upon the construction of the astrolabe, "Tiḳḳun Keli ha-Neḥoshet," as a complement to the Hebrew works on the subject, which he found to be superficial; an essay (1462) upon the construction of the astronomical instrument ("Al-Ẓafiḥah") invented by Al-Zarkala, written at the request of his pupil Menahem (MSS. Munich, No. 36, 13; Paris, 1030, 5; St. Petersburg, 353); an essay upon the construction of an instrument for measuring time (sun dial), which can be made in two different ways (MS. St. Petersburg, No. 361).


  • Jonah Hayyim Gurland, Gincz Yisra'el, iii, Mordecai Kumatyano (in Russian)
  • idem, in Talpiyyot, pp. 1–34 (popular ed.)
  • Moritz Steinschneider, in Bibliotheca Mathematica, 1901, p. 63;
  • idem, Hebr. Uebers. pp. 435, 593, 630.
  • Julius Fürst, Gesch. des Karäerthums, ii.297 et seq.;
  • Graziadio Nepi-Mordecai Ghirondi, Toledot Gedole Yisrael, p. 260;
  • Heinrich Grätz, Gesch. viii.290 and note 6;
  • Grünwald, in Jüdisches Literaturblatt, xxiii.176
  • Template:JewishEncyclopedia
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.