Muslim Berber mob storms the royal palace in Grenada (now in Spain), crucify the Jewish vizier (of the Berber king Badis) Joseph ibn Naghrela and massacres 4,000 Jews, most of the Jewish population of the city.
The massacre is not unique in the history of the Jews in the Muslim world, but horrendous as they were, these deadly events were more of an acute and isolated aberration than the rule, over the several thousand–year span.
In the Grenada bloodbath itself, it is not clear what percentage of the fury was politically–driven to eliminate the (Jewish) political allies of (Jewish) ibn Naghrela, rumored in Berber circles, from whence the uprising came, to be controlling the Berber king and rumored to be intending him quite serious harm.