Khorchi receives a vision from Tengri in this people's Secret History.
This ethnic group's new year celebration, whose name literally means "White Moon", follows a day of celebration of the full moon called bitun. The Sa Skya sect was granted status of feudal lordship in a region partly on account of its evangelism to this ethnic group. During several centuries of foreign domination, these people were effectively led by a line of nine religious leaders begun by Zanabazar, who modified the (*) Phags-pa script a spiritual leader created for them. They're not Tibetans, but the dominant religion among these people today is Yellow Hat Buddhism, which they adopted after one of their leaders gave the title lama to the religion's leader. Khorchi receives a vision from Tengri in this people's Secret History. For 10 points, name this ethnic group which ruled a religiously tolerant empire under leaders like Ogedei.
This ethnic group's new year celebration, whose name literally means "White Moon", follows a day of celebration of the full moon called bitun.
Mongols [accept any specific group of Mongols, like Oirats or Dzungars]