Berber calendar December - 13 January), and 20 "black nights" (Berber: "iḍan tiberkanin/isṭṭafen", Arabic "al-lyali al-sud"), beginning on the first day of "yennayer", corresponding to the Gregorian 14 January. The first day of the year is celebrated in various ways in the different parts of North Africa. A widespread tradition is a meal with particular foods, which vary from region to region (such as a couscous with seven vegetables). In some regions, it is marked by the sacrifice of an animal (usually a chicken). In Algeria, such a holiday is celebrated even by many people who don't use the Berber calendar in
Berber Revolt and al-Andalus (Spain and Portugal) from falling into rebel hands. But the rest of the Maghreb was never recovered. After failing to capture the Umayyad provincial capital of Kairouan, the Berber rebel armies dissolved, and the western Maghreb fragmented into a series of small Berber statelets, ruled by tribal chieftains and Kharijite imams. The Berber revolt was probably the largest military setback in the reign of Caliph Hisham. From it, emerged some of the first Muslim states outside the Caliphate. It is sometimes also regarded as the beginning of Moroccan independence, as Morocco would never again come under the rule