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The secular calendar has its leap day on Feb. 29. On the Jewish calendar, our leap day is 30 Adar I, since Adar in a non-leap year always has 29 days. Yaakov Taubes explores all of the Halakhot pertaining to this unique day.

Yehuda Goldberg explains how the Bible's depictions of the Tower of Babel and of Jerusalem teaches us about the risk and potential of cities.

David Fried explores the humra of pat Yisrael during the aseret yemei teshuvah.

Ben Greenfield God isn’t angry with Sarah, when she laughs at the idea of birthing a child in her old age (Gen. 18:12-15). God is...

Baruch Sterman describes how an encounter with a missionary led him to a greater understanding of Ramban's commentary on this week's Parshah.

Erica Brown explores the deeper meaning of joy in Megillat Esther and beyond.

Tzvi Goldstein's recent piece on Centrist and Haredi Orthodoxy has generated many responses from our readers. Today we present two stimulating letters by R.A. Alpert and Yaakov Resnik, who examine Goldstein's analysis from the perspectives of Hirschian Torah im Derekh Eretz and his analysis of the underpinnings of the Haredi hashkafa, respectively.

Erica Brown considers the little-discussed prohibition on planting during the Nine Days and what it teaches about the nature of mourning and joy.

Jonathan Ziring explores the innovative nature of different Halakhic rulings permitting violating Shabbat to save non-Jewish lives.

Sharon Galper Grossman and Shamai Grossman examine the halakhic permissibility of vaccine mandates by governments and employers.