In Bereshis 37:33 Rashi cites the midrash that the brothers pronounced an excommunication and curse on anyone who would reveal what they did. This is why God, as well as Yitzhak didn't tell Yaakov. I ...
On the Wikipedia page of מנשה מאיליה it says: לפעמים סבל מקנאים שלא ירדו לסוף דעתו. היו שהסתייגו ממנו בגלוי כגון הרב יעקב'קע לנדא (בנו של הרב יחזקאל לנדא, בעל הנודע ביהודה), שעורר קפידא בגלל שהשיג ...
The cherem against Spinoza says the following: The Lords of the ma'amad, having long known of the evil opinions and acts of Baruch de Espinoza... We order that no one should communicate with him ...
Rabbeinu Gershom issued a Cherem (ban) on unauthorized reading of private letters. I would like to know how books which contain private correspondence or sh'elos us'shuvos between Rabbis and ...
Wikipedia article on cherem lists the Talmudic rules on what offenses qualified for niddui. However, it doesn't seem to actually list anything specific (aside from monetary issues that caused ...
In the last decade there have been quite a few bans (cherem) on books published for the Orthodox Jew. Usually these bans are put in place by Israeli Charedi Rabbis. To my knowledge most of these bans ...