Some background to my wife’s altruistic kidney donation two years ago on Erev Yom Kippur. You can help! Click here to support kidney donation through Renewal.

Some historical thoughts on recent usage of the word “pogrom” to describe the current situation in some Israeli cities. Thanks to JTA Editors Philissa Cramer and Andrew Silow-Carroll for shaping the article.

Two brief discussions of the history of women in the Medieval period, 12 pm ET (New York Time) with live chat. Join us!

After a brief overview placing the medieval period in historical context, we look more deeply at two especially noxious false charges: the Blood Libel and Desecration of the Host.

A look at the role of Jews in the medieval European economy, with emphasis on trade and finance. Premiering today at 1pm ET (New York Time) with live chat.

Please join us this Sunday for an outdoor gathering honoring our community’s heroic kidney donors.

After a discussion of Jewish communal structure in the medieval era, we will look at the devastation of the First Crusade and the Rhineland Massacres of 1096, follow up with some thoughts on the long-term impact on Ashkenazi Culture. Premiering today at 1 pm.

Here’s the latest videos from the Jewish History Lab series.

Brief review of the troubled journey of Rabbi Moshe Hayim Luzzatto, a brilliant young scholar of the 18th century who was persecuted by opponents and hounded across Europe before finding his way to the more tolerant intellectual climate of Amsterdam.

//embed.chabad.org/multimedia/mediaplayer/embedded/embed.js.asp?aid=5035317&width=auto&height=auto&HideVideoInfo=false “Truth will Sprout from the Earth: Gutenberg, the Internet, and the New Uncertainty Principle.” Presentation at the XIII International Torah and Science Conference, Miami. Introductory remarks by Dr. Nathan Katz.

Runaway Yeshiva Bochur’s Work May Aid COVID Research The Jewish Star (March 24, 2021) Shortly after emigrating to Israel in 1901, this Telz-educated orphaned son of a rosh yeshiva earned an unlikely nickname: “the crazy fly-catcher.” Israel Aharoni’s odyssey into the world of middle eastern zoology, long recognized in the scientific world with over 30…

A brief discussion of the election of Volodomyr Zelensky in the larger context of Ukrainian-Jewish history. Recorded on March 4, 2022 with hope for a speedy return to peace for Ukraine and its people.

My grandfather died, suddenly, on the rarest date of the year: March 3, 1957, which coincides with today, the 30th of Adar Rishon. It’s a leap year date that only appears seven times in the nineteen-year cycle of the Hebrew calendar. Following our Lithuanian Jewish custom, we observe his death anniversary on the 1st of…

I recorded this video just hours before the Russian invasion of Ukraine, motivated by Mr. Putin’s bizarre speech denying the historical legacy of the Ukrainian people.

This brief video provides a survey of the long Jewish presence in the region, framed in the context of maps: political, ethnolinguistic, military and social.

Very pleased to welcome the 100th student to my new online class on the Holocaust, free and open to the community. When Was the Book of Esther Written? New video available to students registered for the Biblical Jewish History course, and YouTube channel members at the Researcher and Colleague level.

Join us today at 11:00 am ET (New York Time) for a discussion of the implications of Digital Learning for Torah and Torah-adjacent study. Rabbi Schwed is the visionary director of multiple initiatives for the Orthodox Union, including the revolutionary All Daf app, also All Mishnah and All Parsha. Click here to RSVP for the…

The Jewish history Lab begins a discussion of the Holocaust. Premieres today at 12 noon ET (New York Time) with live chat. Join us! Archaeological Forgeries and Biblical History Discussion of the difficulty of working with forged artifacts and the study of Biblical History. This video is available to YouTube Channel members at the Researcher…

We got Zoombombed by Neo-Nazis in the middle of the conference, but I manage to deliver my presentation. Join us at 12 noon ET (New York time) for a premiere and live chat! 23 minutes, presentation is a little different than most of my lectures but still fun I think. I hope. Online Courses

Also: Origins of the Jewish People; Neo-Nazis Zoombomb the Sri Lankan Conference of Jews and Buddhists; Soviet Jews During the Interwar Period, and What’s with the Queen of Heaven Business? What is a Synagogue? 7. A Place of Community (Carpentras, France) Final installment in the What is a Synagogue? series. Amazing things in the basement…

Jewish History lectures, recent and forthcoming. It’s been pretty busy. Jews and Ukrainians in Revolutionary Times Ukrainians and Jews forged an unusual partnership during the brief period that followed the collapse of the Russian Empire, creating a Ministry of Jewish Affairs in a short-lived independent Ukrainian state. The experiment was doomed, however, by the Russian…

Warning: this video deals with issues that some of my fellow students of Jewish history might find philosophically challenging.

Also: what’s with the Eternal Light in the Crypto-Jewish synagogue of Belmonte, Portugal?