The Tibetic languages form a well-defined group of languages descending from Old Tibetan. According to Nicolas Tournadre, there are 50 Tibetic languages, which branch into more than 200 dialects, which could be grouped into eight dialect continua. These Tibetic languages are spoken in Tibet, Gilgit-Baltistan, Ladakh, Aksai Chin, Nepal, and in India at Himachal Pradesh, and Uttarakhand. Classical Tibetan is the major literary language, particularly for its use in Tibetan Buddhist scriptures and literature.