"Buddhism's spread across Asia is well-acknowledged, but beyond mere religion, this pan-Asian civilization also become a fountain of knowledge in fields as diverse as language, linguistics, mathematics, astronomy, medicine, botany, martial arts and philosophy.... Historians generally refer to this large-scale export of Sanskriti as the export of Buddhism, which dilutes the role of dharmic culture in general.... The arts were also centres of confluence of Chinese culture and Sanskriti and gave rise to the school known as Sino-Indian art. This school became prominent in the Northern Wei period (386–534 ce), and there are a number of rock-cut caves at Thunwang, Yun-kang and Longmen with colossal images of Buddha 60 to 70 feet high, as well as fresco paintings."