Shabbat in Rosyln, NY; Hello from Jerusalem;

Really looking forward to meeting this community!


Message recorded from Jerusalem last week


Medieval Antisemitism and the Spanish Inquisition

Invitation to LCM Breakfast; Caribbean Jews and the History of Chocolate; Spanish Disputations and the Pogroms of 1391

Please join me at our First Annual Breakfast!


Jews and Chocolate! Who knew?


Disputations and the Pogroms of 1391

The Jews of Bukhara (Sunday in Denver); the Maimonidean Controversy; Save the Date for Roslyn NY

Really looking forward to speaking to the Or Avner community in Aurora, CO!


The Maimonidean Controversy


Save the Date: Shabbaton in Roslyn NY, December 20-21

  • Please Join Me in Spain and Portugal

    Please Join Me in Spain and Portugal

    I’m really thrilled to be cruising the Douro River this summer with Kosher Riverboat Cruises, lecturing on the history of Spanish and Portuguese Jewry (my wife plans to come along, which means I really have to bring my A-game). I just learned that there’s only 18 cabins left, so if you’re interested, please click the……

  • “Should We Tear Down Statues of Khmel’nyts’kyi and Petliura?”

    “Should We Tear Down Statues of Khmel’nyts’kyi and Petliura?”

    Conference presentation at the “The 100th Anniversary of the Ukrainian Revolution and the Proclamation of Ukraine’s Independence,” held at the Ukrainian Institute, New York, Sunday, January 21.  My talk was inspired by a thought-provoking article in the Forward by Avital Chizik-Goldschmidt. A fascinating panel, which included Anna Procyk of CUNY, Serhy Yekelchyk of University of……

  • The Aish Kodesh On Beshalah (January 20, 1940 in the Warsaw Ghetto)

    The Aish Kodesh On Beshalah (January 20, 1940 in the Warsaw Ghetto)

    On Parashat Beshalah (January 20, 1940), a young rebel escaped from the notorious Pawiak Prison, located not far from the Piaseczno Bet Midrash. Andrzej Kott, the 21-year old leader of the military wing of a resistance movement called the Polish People’s Independence Action, was a child of assimilated Jewish parents who had converted to Christianity….…

  • The Aish Kodesh and Rav Shagar (Parashat Bo 5702, January 24, 1942)

    The Aish Kodesh and Rav Shagar (Parashat Bo 5702, January 24, 1942)

    The recent translation of the work of Rabbi Shimon Gershon Rosenberg (Rav Shagar, 1949-2007) promises to elevate his distinctive thought to a broader audience of readers (Faith Shattered and Restored: Judaism in the Postmodern Age), many of whom will resonate with Dr. Yitzchak Mandelbaum’s comment on his discovery of Rav Shagar: “I knew I had……

  • The Deleted Drasha: Aish Kodesh on Parashat Bo 5700 (January 13, 1940)

    The Deleted Drasha: Aish Kodesh on Parashat Bo 5700 (January 13, 1940)

    The Rebbe’s entry for Parashat Bo (January 13, 1940) is unusual. Recorded in the scribe’s careful hand, with minimal annotation, it has two bold diagonal lines drawn through the center of the text, indicating that the Rebbe rejected it altogether. A brief and uncharacteristic first-person comment is appended: “more of what we said I do……

  • Working on Spanish Edition of Kabbalah of Forgiveness!

    Working on Spanish Edition of Kabbalah of Forgiveness!

    Really nice to meet with Jésica Neuah of Editorial Perspectivas to work on the tentative cover and book design of the Spanish edition of The Kabbalah of Forgiveness! Great to work with her and the whole team. G-d willing the book will be released in the summer of this year.

  • Rabbi Shlomo Katz on the Aish Kodesh

    Rabbi Shlomo Katz on the Aish Kodesh

    I had chills listening to Rabbi Shlomo Katz review the Rebbe’s words on this week’s parashah. I am grateful for his kind words of praise for my recent book on the historical context of the Aish Kodesh, but to tell the truth, I hardly recognized my own words from the masterful treatment they received from……

  • The Aish Kodesh On Vaera 5702 (January 1942 in the Warsaw Ghetto)

    The Aish Kodesh On Vaera 5702 (January 1942 in the Warsaw Ghetto)

    Chaim Kaplan recorded the mood in the Warsaw Ghetto in January 1942:  The cold is so intense that my fingers are often too numb to hold a pen. There is no coal for heating and electricity is sporadic or nonexistent. In the oppressive dark and unbearable cold your mind stops functioning. Yet even in such……

  • The Aish Kodesh on Vaera 5700 (Torah from the Warsaw Ghetto, January 1940)

    The Aish Kodesh on Vaera 5700 (Torah from the Warsaw Ghetto, January 1940)

    Five months into the Nazi occupation, the Jews of Warsaw struggled to keep up with the barrage of administrative decrees inflicted upon them by the Germans. When the Rebbe spoke on Parashat Vaera, which fell on January 6, 1940, the worst was still far off. The Nazis had replaced the leadership of the Jewish Council……

  • The Aish Kodesh on Shemot 5702

    The Aish Kodesh on Shemot 5702

    The winter of 5702 brutalized the Jews of the Warsaw ghetto with unforgiving cold. Chaim Kaplan, a school principal whose journal Scroll of Agony survived the war, recounts in his typically blunt prose how the physical privations of January 1942 affected the spiritual life of Ghetto inhabitants: Gone is the spirit of Jewish brotherhood. The……

  • The Sephardic Diaspora (Spring 2018 Lecture Series)

    The Sephardic Diaspora (Spring 2018 Lecture Series)

    The Sephardic Diaspora Spring 2018 Lecture Series Monday Nights @ 7:00 pm Main Auditorium, Touro College, 1602 Avenue J Brooklyn NY 11230 (718) 535-9333 Free and Open to the Public No hard questions, please. Image: Eleanora of Toledo, student of Benvenida Abravanel February 5: Who Was Benvenida Abravanel? February 12 :Who Was Samuel Usque? (No Class Feb……

  • The Piaseczno Rebbe on Vayigash

    The Piaseczno Rebbe on Vayigash

    On December 27, 1941, the Piaseczno Rebbe delivered his last recorded drashah on Parashat Vayigash in the Warsaw Ghetto. The previous month was especially brutal: an especially cold winter, combined with a severe coal shortage, exacerbated the typhus epidemic, and each morning a detail of the chevra kadisha patrolled the streets to collect the bodies……

The Jews of Bukhara (Denver, CO); The Jews of the Lesser Antilles; Varieties of Crypto-Jewish Identity; Wait, Alexander Hamilton was Jewish?

Looking forward to a wonderful Shabbat in the Denver Jewish community!


Our Itinerary of Discovery in the Western Caribbean


Channel Members


Premiering at 10am ET


  • Jewish History Lectures Resume!

    Jewish History Lectures Resume!

    The Jews of the Danube Fall 2018 Lecture Series Lectures in Europe: October 2018 Lectures in Brooklyn: November-December 2018 From its headwaters in Germany’s Black Forest to its final destination in the Black Sea, the Danube River flows through ten countries and over ten centuries of Jewish history. Great cities like Vienna and Budapest punctuate……

  • I want ten students.

    I want ten students.

    Hello friends and colleagues: Thank you for your consistent support and enthusiasm. I am delighted that so many people share my passion for Jewish history and thought, and consider it a rare privilege to share my research with you online and in person. I wish you all a blessed New Year of spiritual and material……

  • Free Online Resources for the Ten Days of Repentance

    Free Online Resources for the Ten Days of Repentance

    Hello everyone! Please visit this site for my translation of Rabbi Moshe Cordovero’s classic Tomer Devorah (The Kabbalah of Forgiveness), a text often studied at precisely this time of year as we strive to improve our relationships with each other, with G-d, and with ourselves. The site also features a series of brief videos on each……

  • The Jews of the Danube (Fall 2018 Lecture Series)

    The Jews of the Danube (Fall 2018 Lecture Series)

    The Jews of the Danube Fall 2018 Lecture Series From its headwaters in Germany’s Black Forest to its final destination in the Black Sea, the Danube River flows through ten countries and over ten centuries of Jewish history. Great cities like Vienna and Budapest punctuate its course through East-Central Europe, the cradle of much of……

  • In Search of the Crypto-Jews of Portugal (What I did over my Summer Vacation)

    In Search of the Crypto-Jews of Portugal (What I did over my Summer Vacation)

    The invisible yet palpable echo of the crypto-Jewish tradition resonates through Portugal like the far side of a conversation faintly overheard in another person’s cell phone. A rush of sibilants or an exclamation of laughter confirms the reality of the distant interlocutor, even though we do not see her before us. The history of Portugal’s…

  • Learn Maimonides on Teshuvah with me this year!

    Learn Maimonides on Teshuvah with me this year!

    Join me in this global effort to prepare for Rosh Hashanah and Yom Kippur this year!

  • Camp Guard Associated with the Murder of the Piaseczno Rebbe Extradited to Germany

    Camp Guard Associated with the Murder of the Piaseczno Rebbe Extradited to Germany

    Hasidim of the Aish Kodesh should take note: this is likely the face of one of the murderers of Rabbi Kalonymus Kalmish Shapira hy”d. Jakiw Palij, a longtime resident of Queens, New York, was recently extradited to Germany for filing false information while immigrating to the United States after World War II. Palij served as……

  • Two Public Talks on Tisha B’Av

    Two Public Talks on Tisha B’Av

    Hello students, friends and colleagues– We still have a few hours before the onset of Shabbat and the possible arrival of Mashiach, but if we have to make it through another Tisha B’Av– If you are in Fort Lee, NJ Sunday morning or Crown Heights, Brooklyn Sunday afternoon, please join me for presentations on the……

  • Ben Rothke Review in Jewish Link

    Ben Rothke Review in Jewish Link

    Thanks to Ben Rothke for this kind review of Torah from the Years of Wrath in this week’s Jewish Link of New Jersey. I am very grateful to be a part of the community that values and spreads the teachings of the Piaseczno Rebbe; nice to see positive reviews! Keeping the Faith By Ben Rothke……

  • What is the Global Study of Maimonides Project?

    What is the Global Study of Maimonides Project?

      Hello everyone– My father’s yortsayt is coming up next week, and as in previous years I hope to begin another cycle of study of Maimonides on Teshuvah. Please visit the Maimonides on Teshuvah page page to learn more about how to participate in this free, Global Study of Maimonides program. Posts will also appear……

Visits to Synagogues in Bordeaux and Libourne (France); Another Open Letter to Jewish Participants in anti-Israel Protests re: Amsterdam; Conference Presentation on Sheptytsky and WW II

Fantastic Voyage of Discovery with Kosher River Cruises


A Difficult Conversation


Recent Conference Presentation in Toronto


Wait, Christopher Columbus was Jewish? Documentary on Roman-Jewish War now Online

Surprised how much attention this got.


Herod’s Tragic Reign

The Fatal Conflict

How Jewish Culture will Thrive after October 7; The Jews of Al-Andalus Part II

Remarks at Lander College for Men


Maimonides and the Controversy over His Work

Jews under the Visigoths II; The Spanish Golden Age

Public at 10am ET (44 minutes)


Online Courses in Jewish History

A Thousand Years of Ashkenaz

Jewish Life in Visigothic Spain; Commemorating October 7

This is one of the most bizarre periods of Jewish history, and that’s saying a lot.

Dropping on Sunday, September 22 at 10am ET. 70 minutes.


A Thousand Years of Ashkenaz

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