In North Africa, a unique custom developed of reciting a Mi Khamokha v-Ein Kamokha piyyut, inspired by the famed Shabbat Zakhor work of Yehuda haLevi, on the Shabbat before a local Purim (a celebration of community’s deliverance from destruction). This piyyut, written by R. Avraham ben Rafael Khalfon, was recited on the Shabbat before 29 Tevet in the community of Tripoli, to celebrate the victory of the Karamanlid dynasty over the despotic usurper Ali Burghul (after events transpiring from 1793-1804).