Abraham bar Ḥiyya ha-Nasi[note 1] (Hebrew: ר׳ אַבְרָהָם בַּר חִיָּיא הַנָשִׂיא;
c. 1070 – 1136 or 1145), also known as Abraham Savasorda,[note 2]Abraham Albargeloni, and Abraham Judaeus, was a Catalan Jewish mathematician, astronomer and philosopher who resided in Barcelona.
Bar Ḥiyya was active in translating the works of Islamic science into Latin and was likely the earliest to introduce algebra from the Muslim World into Christian Europe. He also wrote several original works on mathematics, astronomy, Jewish philosophy, chronology, and land surveying. His most influential work is his Ḥibbur ha-Meshiḥah ve-ha-Tishboret, translated in 1145 into Latin as Liber embadorum.[11] A Hebrew treatise on practical geometry and algebra, the book contains the first known complete solution of the quadratic equation , and influenced the work of Leonardo Fibonacci.[12]
^Langermann, Y. Tzvi (2007). "Bar Ḥiyya: Abraham Bar Ḥiyya Savasorda". In Thomas Hockey; et al. (eds.). The Biographical Encyclopedia of Astronomers. New York: Springer. pp. 95–6. ISBN 978-0-387-31022-0. (PDF version)
^Cite error: The named reference EotMA was invoked but never defined (see the help page).
^Rapoport, Hegyon ha-Nefesh, p. 63.
^Cite error: The named reference JE was invoked but never defined (see the help page).
^Katz, Shlomo, ed. (14 March 1998). "R' Avraham ben Chiya Hanasi mi'Barcelona". HaMaayan / The Torah Spring. XII (18): 4.
^ abCite error: The named reference geiger was invoked but never defined (see the help page).
^Cite error: The named reference drechsler was invoked but never defined (see the help page).
^Allgemeine Enzyklopädie der Wissenschaften und der Künste, Part 1, Vol. 1, p. 157; Poggendorff’s Handwörterbuch, Volume I, A-L, 1863 Leipzig.
^Goldstein, Bernard R. (2001). "Kepler and Hebrew Astronomical Tables". Journal for the History of Astronomy. 32 (107): 130–136. Bibcode:2001JHA....32..130G. doi:10.1177/002182860103200203. ISSN 0021-8286. S2CID 117455118.
^Millás Vallicrosa, José M. (1959). La obra Séfer hešbón mahlekot ha-kokabim de R. Abraham bar Hiyya ha-Bargeloní. Barcelona: Instituto Arias Montano. pp. 13–14.
^Kaunzner, Wolfgang (1987). "On the Transmission of mathematical Knowledge to Europe". Sudhoffs Archiv. 71 (2). Franz Steiner Verlag: 129–140. JSTOR 20777136.
^Levey, Martin (September 1952). "The Encyclopedia of Abraham Savasorda: A Departure in Mathematical Methodology". Isis. 43 (3): 257–264. doi:10.1086/348115. JSTOR 227469. S2CID 144775595.
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and the Liber Embadorum by Abrahambar Chiia. He has worked together with the Jewish mathematician Savasorda (AbrahamBarḤiyya Ha-Nasi). His manuscripts...
(תּוֹלְדֹת). Hanan bar Rava taught in Abba Arikha's name that Abraham's mother was named ʾĂmatlaʾy bat Karnebo. Hiyyabar Abba taught that Abraham worked in Teraḥ's...
Hezekiah, who had escaped the Buyyids with his brother. In addition, AbrahambarHiyya was said to be a descendant of Hezekiah. King David Dynasty [see note...
Abraham ben Meir Ibn Ezra (Hebrew: ר׳ אַבְרָהָם בֶּן מֵאִיר אִבְּן עֶזְרָא ʾAḇrāhām ben Mēʾīr ʾībən ʾĒzrāʾ, often abbreviated as ראב"ע; Arabic: إبراهيم...
Meir barHiyya Rofe (17th century; the Encyclopaedia Judaica article gives the years of 1610 and 1690 as the possible years of birth and death respectively)...
Shimon bar Yochai (Zoharic Aramaic: שמעון בר יוחאי, Shim'on bar Yoḥai) or Shimon ben Yochai (Mishnaic Hebrew: שמעון בן יוחאי, Shim'on ben Yoḥai), also...
religious scholar, rebuilder of Ibn Yahya Synagogue of Calatayud; descendant of Hiyya al-Daudi who was great-grandson of Hezekiah Gaon Cultural intermediaries:...
the expulsion of Jews from Spain in 1492, many Spanish rabbis such as Abraham ben Eliezer Halevi believed that the year 1524 would be the beginning of...
Academy of the Hebrew Language in 2009. AbrahambarHiyya Ha-Nasi (1130) Abraham ibn Ezra (1093–1168) Abraham Zacuto ben Samuel (1452 – probably 1515)...
Hasdai ibn Shaprut Ibn Gabirol AbrahambarHiyya Bahya ibn Paquda Judah Halevi Abraham ibn Daud Joseph ibn Tzaddik Abraham ibn Ezra Maimonides Nachmanides...
Studi bizantini, Volume 2, Istituto romane editoriale, 1927, p. 307. AbrahambarHiyya Savasorda, La obra Forma de la tierra (1956), p 48. Molto importanti...
Torah. He married his cousin Rachael d’Espinosa, daughter of his uncle Abraham d’Espinosa, who was also a community leader and Michael's business partner...
the shrine of Abraham in Kefar Avaraham (aka Barza) near Damascus, and several other shrines dedicated to Elijah throughout Syria. Abraham has been associated...
appointed Nagid in 1195. A work known as "Megillat Zutta" was written by Abraham ben Hillel, who writes a scathing description of Sar Shalom while praising...
Canterbury December 14 – Harald IV (Servant of Christ), king of Norway AbrahambarHiyya, Spanish mathematician and astronomer Jutta von Sponheim, German noblewoman...
antedated the several written laws of the Torah, as Enos, Enoch, Noah, Abraham, Isaac, and Jacob. These were the Patriarchs, who were the living impersonations...
Joseph Albo, Abraham ibn Daud, Nissim of Gerona, Bahya ibn Paquda, AbrahambarHiyya, Joseph ibn Tzaddik, Hasdai Crescas and Isaac ben Moses Arama. The...
in Toledo and may have practiced medicine for the court there. He and Abraham ibn Ezra were well acquainted and the latter quoted Halevi on multiple...
pledged by the covenant which God concluded with the biblical patriarch Abraham, their ancestor, and again with the entire Jewish nation at Mount Sinai...
down rules for solving quadratic equations. The Jewish mathematician AbrahambarHiyya Ha-Nasi (12th century, Spain) authored the first European book to...
of ways. Traditionally, Judaism holds that Yahweh—that is, the god of Abraham, Isaac and Jacob/Israel, and the national god of the Israelites—delivered...
to be questioned. Called upon, about 1238, for support by Solomon ben Abraham of Montpellier, who had been excommunicated by supporters of Maimonides...
Indicator of the Spheres). The last-mentioned work was printed in AbrahambarḤiyya's "Ẓurat ha-Areẓ" (Offenbach, 1720), with notes by Mattathiah Delacrut...