Berber languages suggests that the C-Group population — which, along with the Kerma culture, inhabited the Nile valley immediately before the arrival of the first Nubian speakers — spoke Afro-Asiatic languages. Roger Blench (2018) suggests that Proto-Berber speakers had spread from the Nile River valley to North Africa 4,000-5,000 years ago due to the spread of pastoralism, and experienced intense language leveling about 2,000 years ago as the Roman Empire was expanding in North Africa. Hence, although Berber had split off from Afroasiatic several thousand years ago, Proto-Berber itself can only be reconstructed to a period as late as 200 A.D. Blench
Berber languages Later, between about 1000 CE and 1500 CE, they were written in the Arabic script, and since the 20th century they have been written in the Berber Latin alphabet, especially among the Kabyle and Riffian communities of Morocco and Algeria. The Berber Latin alphabet was also used by most European and Berber linguists during the 19th and 20th centuries. A modernised form of the Tifinagh alphabet, called Neo-Tifinagh, was adopted in Morocco in 2003 for writing Berber, but many Moroccan Berber publications still use the Berber Latin alphabet. Algerians mostly use the Berber Latin alphabet in Berber-language education at public