Between the mid-1st century and the mid-3rd century, Buddhism, patronized by the Kushans, extended to China and other Asian countries through the Silk Road. Kanishka is renowned in Buddhist tradition for having convened a great Buddhist council in Kashmir. Along with his predecessors in the region, the Indo-Greek king Menander I (Milinda) and the Indian emperors Ashoka and Harsha Vardhana, Kanishka is considered by Buddhism as one of its greatest benefactors. During the 1st century AD, Buddhist books were being produced and carried by monks, and their trader patrons. Also, monasteries were being established along these land routes that went from China and other parts of Asia. With the development of Buddhist books, it caused a new written language called Gandhara. Gandhara consists of eastern Afghanistan and northern Pakistan. Scholars are said to have found many Buddhist scrolls that contained the Gandhari language. The reign of Huvishka corresponds to the first known epigraphic evidence of the Buddha Amitabha, on the bottom part of a 2nd-century statue which has been found in Govindo-Nagar, and now at the Mathura Museum. The statue is dated to "the 28th year of the reign of Huvishka", and dedicated to "Amitabha Buddha" by a family of merchants. There is also some evidence that Huvishka himself was a follower of Mahāyāna Buddhism. A Sanskrit manuscript fragment in the Schøyen Collection describes Huvishka as one who has "set forth in the Mahāyāna." The 12th century historical chronicle "Rajatarangini" mentions in detail the rule of the Kushan kings and their benevolence towards Buddhism:  The art and culture of Gandhara, at the crossroads of the Kushan hegemony, developed the traditions of Greco-Buddhist art and are the best known expressions of Kushan influences to Westerners. Several direct depictions of Kushans are known from Gandhara, where they are represented with a tunic, belt and trousers and play the role of devotees to the Buddha, as well as the Bodhisattva and future Buddha Maitreya. According to Benjamin Rowland, the first expression of Kushan art appears at Khalchayan at the end of the 2nd century BCE. It is derived from Hellenistic art, and possibly from the art of the cities of Ai-Khanoum and Nysa, and clearly has similarities with the later Art of Gandhara, and may even have been at the origin of its development.