Book excerpt: All contributions deal with the reception of theories in the Arabic grammatical tradition from the time of Sībawayhi (d. end of the 8th century C.E.) to the later grammarians in the 14th century C.E.. After Sībawayhi, considerable changes in the linguistic situation took place. The language of the Arab Bedouin described by him died as a native language. Grammars also changed, even if grammarians used for the most part the data given by Sībawayhi. This volume aims to determine continuities and changes in Arabic grammars, providing a new perspective on the impact of cultural and historical developments and on the founding principles of Sībawayhi's Kitāb.