Category Archives: Religious Leaders

Spiritual and Religious Greats of the Jewish People

Jew of the Week: Avraham bar Chiya haNasi

The Rabbi Who Discovered the Quadratic Formula

Avraham bar Chiya (c. 1070-1145) was born in Barcelona to a Sephardic Jewish family. It appears that his family was persecuted by its Christian rulers, so they fled to the neighbouring Arab kingdom of Zaragoza. Bar Chiya came from a long line of rabbis, and was also extensively trained in science, math, and astronomy. Famed for his wisdom, he became the court astronomer of Al-Musta’in II. Eventually, he was appointed minister of police and given the title sahib al-shurtah, “city governor”. This is why he was known in the Jewish community as HaNasi, “the prince” or “the president”. Al-Musta’in II was unable to defend his domain from the Christians, who soon took over. Bar Chiya moved to southern France for a while and lived in Narbonne and Provence. There he composed some of the most important scientific texts of the Medieval era. He translated a number of Arabic works into Latin, opening their study for Europeans, and played a key role in introducing the Hindu numerals we use today (by way of Arabia) to Europe, and thus to the rest of the world. Bar Chiya also synthesized ancient Greek wisdom with contemporary Arabic knowledge, and published new discoveries in number theory, arithmetic, geometry, optics, astronomy, and music theory. His Treatise on Measurement and Calculation inspired later greats like Plato of Tivoli and the world-famous Fibonacci. Meanwhile, Bar Chiya also served as the chief rabbi of the Jewish communities he presided over, and composed two important Jewish commentaries and texts. He is credited with being the first person to write a scientific book in Hebrew, and played an instrumental role in the development of the Hebrew language. His disciples included both Jews and non-Jews, among them the great Rabbi Abraham ibn Ezra, and the Flemish astronomer Rudolf of Bruges. The first historical appearance of the quadratic equation (with a complete solution of x2 – ax + b = c) appears in one of Bar Chiya’s works! He is also referenced in many philosophical works as “Abraham Judaeus”. All in all, his impact on the development of science, mathematics, and human history is unparalleled.

Jew of the Week Turns 10 Years Old Today!

What I Learned from 10 Years of Writing Jew of the Week

Words of the Week

The mind of man plans his way, but God directs his steps.
King Solomon (Proverbs 16:9)

Jew of the Week: Simcha Bunim of Peshischa

The Polish Nobility’s Hasidic Pharmacist 

A 19th century woodcut engraving of Simcha Bunim of Peshischa

Simcha Bonhomme “Bunim” Bonhart (c. 1765-1827) was born in Vodislav, Poland, the son of a wealthy German-Jewish merchant father (who was also a rabbi and rationalist philosopher) and a mother that came from a long line of rabbis going all the way back to Rashi. After studying at the top yeshivas in Hungary and Czechia, Simcha Bunim went to Leipzig to also get a solid secular education at one of the world’s top universities. He studied science and majored in pharmacology. After marrying, he settled in Peshischa (Przysucha) and opened up his own pharmacy. His concoctions were so potent and famous that he soon served the Polish nobility. He also continued his father’s merchant business, sold exotic woods, and regularly appeared at the Danzig trade fair. Meanwhile, Simcha Bunim joined the local Peshischa Hasidic group, then under the leadership of a rabbi and mystic known simply as HaYid HaKadosh, “the Holy Jew”. When the Holy Jew died in 1813, Simcha Bunim took over as the new leader. Unlike other Hasidic groups, Peshischa was all about enlightenment and rationalism. Their aims were to synthesize science with Judaism, to develop each member’s personal autonomy, and to inspire people to discover who they are and to think critically on their own. They encouraged people to pray when they really felt like it (instead of praying by rote three times a day) and to walk confidently with an upright posture. Instead of wearing the classic Hasidic robes, Simcha Bunim dressed in a regular suit. His internal Hasidic revolution spread like fire across Eastern Europe—causing Simcha Bunim to nearly be excommunicated by other Hasidic rabbis! Simcha Bunim is also credited with being perhaps the first kiruv (“outreach”) rabbi. While other Hasidic groups at the time simply ignored the secular Jewish world, Simcha Bunim went out of his way to bring secular Jews back into the faith. In fact, he would regularly go to theatres on Jewish holidays in the hopes of inspiring Jews there to come with him to the synagogue instead. While the Peshischa Hasidic movement itself died out shortly after Simcha Bunim’s death, it sparked multiple new Hasidic groups, and had a significant impact on the wider Jewish world as well. Today is Rabbi Simcha Bunim’s yahrzeit.

Words of the Week

I know who I am irrespective of how I am perceived by others.
– Rabbi Simcha Bunim of Peshischa

Jew of the Week: Rabbi Yitzchak Yaacov Reines

Father of Religious Zionism

Yitzchak Yaacov Reines (1839-1915) was born near what is now Pinsk, Belarus to a long line of rabbis. He studied at the famous Volozhin Yeshiva where he received his rabbinic ordination in 1867. Rabbi Reines became the rabbi of the town of Svintsyan, Lithuania, just north of Vilnius. There, he opened his own yeshiva which, for the first time, included a secular studies curriculum as well. In 1882, a large assembly of rabbis gathered in St. Petersburg to discuss easing the plight of Russian Jewry, then suffering immense persecution and poverty. Reines proposed spreading his successful yeshiva model across Russia, allowing Jews to integrate into mainstream society (and economy) without abandoning their faith and traditions. The assembly rejected his plan, so Reines continued his mission on his own. His Svintsyan Yeshiva created a ten-year program that would give students both rabbinic ordination and a government-approved job. Unfortunately, the yeshiva faced too much opposition and shut down after four years. Meanwhile, Rabbi Reines was an active member of Hovevei Zion. In 1893, together with Rabbi Shmuel Mohilever, he proposed that Jews settle in their ancestral Holy Land and organize a mercaz ruhani, “spiritual centre”, that would combine Torah with good-old-fashioned agricultural labour. In 1899, Reines participated in the Third Zionist Congress, following which he kept a regular correspondence with Theodor Herzl. Rabbi Reines worked tirelessly to get more approval and understanding for the Zionist movement among traditional and Ultra-Orthodox Jews. In 1901, he built on his earlier mercaz ruhani model to start a new “religious Zionist” movement, known as Mizrachi. That same year, at the Fifth Zionist Congress, Reines played an instrumental role in preventing Zionism from becoming entirely secular and anti-religious (stopping the radical “Swiss faction” behind it). In 1902, Rabbi Reines published A New Light on Zion, a book that addressed the concerns that Ultra-Orthodox Jews had with Zionism. In it, he debunked many of the myths surrounding Zionism, and also composed a manual for establishing a model Jewish state in Israel that would be both materially and spiritually prosperous. Rabbi Reines assembled a large gathering of rabbis in Vilnius in 1902 to officially launch the religious Zionist movement. It would later gave birth to Israel’s first religious political party, the Mizrachi Party, which established Israel’s Ministry of Religious Affairs, and made sure that the Israeli government would adhere to Sabbath and kashrut observance. Mizrachi also built Israel’s first network of religious schools (which are Zionist and encourage students to serve in the IDF). The youth movement of Mizrachi, called Bnei Akiva, is the largest Jewish youth organization in the world (with 125,000 members in 42 countries) and operates religious Zionist schools around the globe. In 1905, Rabbi Reines resurrected his old vision and opened a new yeshiva in Lida, near Minsk, Belarus, which integrated religious and secular studies. Rabbi Reines also came up with a new Talmud-study system, wrote a commentary on the Midrash, and published a number of other acclaimed books. Today, the religious Zionist movement that he founded remains one of the largest and most influential in Israel. Rabbi Reines’ yahrzeit is this Sunday.

Words of the Week

I really wish the Jews again in Judea an independent nation.
John Adams, second president of the United States