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 languages lives outside these regions in the bigger cities. Moroccan linguist Mohamed Chafik claims that 80 percent of Moroccans are Berbers. It is not clear, however, whether he means "speakers of Berber languages" or "people of Berber descent". The division of Moroccan Berber languages into three groups, as used by Ethnologue, is common in linguistic publications, but is significantly complicated by the presence of local differences: Shilha is subdivided into Shilha of the Draa River valley, Tasusit (the language of the Souss) and several other mountain languages. Moreover, linguistic boundaries are blurred, such that certain languages cannot accurately be described as