According to later traditions, thousands of Spanish Jews had settled in Africa by 693.
It is told that these Jews, together with their Moroccan coreligionists, plotted to conquer or deliver Spain into the hands of the more tolerant Muslims (694).
The numerous departures for Spain drained neither the strength of Moroccan Jewry nor its intellectual activity. Isaac Alfasi from Fez for Cordoba (1088), Judaism in Morocco retained its vigor.
At a later date, the Almoravides prohibited the Jews to live in their capital Marrakesh .
The most brilliant period of the Jews of Morocco from the spiritual and intellectual point of view belongs to the reigns of the Idrisids and their successors.
The latter is in Greek, while one of the inscriptions of Volubilis is in Hebrew.
Morocco, like the remainder of the Maghreb, was one of the favorite territories for Jewish missionary activities.
Scholars were to be found in the Atlas region, in Aghmāt; of these, there is information on the talmudist Zechariah b. In Fez studies were carried on continuously; it was for this reason that Maimonides and his family settled there after leaving Spain during the persecution of the Almohads.