The region was the cradle of various ancient civilizations such as ancient China, ancient Japan, ancient Korea, and the Mongol Empire. East Asia was one of the cradles of world civilization, with China, an ancient East Asian civilization being one of the earliest cradles of civilization in human history. For thousands of years, China largely influenced East Asia as it was principally the leading civilization in the region exerting its enormous prestige and influence on its neighbors. Historically, societies in East Asia have been part of the Chinese cultural sphere, and East Asian vocabulary and scripts are often derived from Classical Chinese and Chinese script. The Chinese calendar preserves traditional East Asian culture and serves as the root to which many other East Asian calendars are derived from. Major religions in East Asia include Buddhism (mostly Mahayana[note 4]), Confucianism and Neo-Confucianism, Taoism, Ancestral worship, and Chinese folk religion in Greater China, Buddhism and Shintoism in Japan, and Christianity, Buddhism, and Sindoism in Korea. Shamanism is also prevalent among Mongols and other indigenous populations of northern East Asia such as the Manchus.