The period ca. 645-770 marked an extraordinary era in the development of East Asian Buddhism and Buddhist art. Increased contacts between China and regions to both its west and east facilitated exchanges and the circulation of ideas, practices and art forms, giving rise to a synthetic art style uniform in both iconography and formal characteristics. The formulation of this new Buddhist art style occurred in China in the latter part of the seventh century, and from there it became widely disseminated and copied throughout East Asia, and to some extent in Central Asia, in the eighth century.