1230–1233 CE: MAIMONIDES PUBLISHES

The controversy over Maimonides’ works rocks the Spanish and French communities; the rabbis of southern France pronounce an excommunication on anyone who reads the Guide of the Perplexed or seeks after “Greek wisdom”: a counter–excommunication is proclaimed by the Maimonidean camps of “Provence” (southern France).
(A Historical Atlas of the Jewish People)

[Maimonides’ Guide for the Perplexed is currently considered possibly the preeminent “establishment Jewish philosophical work.”]