Some of the prehistoric peoples who once lived in Siberia and other parts of Central and Eastern Asia have dispersed and migrated into other regions, bringing aspects of their cultures with them. For example, many Uralic peoples live now outside Siberia; however, the original location of the Proto-Uralic peoples (and its extent) is debated. Combined phytogeographical and linguistic considerations (distribution of various tree species and the presence of their names in various Uralic languages) suggest that this area was north of Central Ural Mountains and on lower and middle parts of Ob River. Newer studies suggest and origin in Northeast Asia. Proto-Uralic is suggested to be linked to the Chinese Liao civilization. The ancestors of Hungarian people or Magyars have wandered from their ancestral proto-Uralic area to the Pannonian Basin. Shamanism has played an important role in Turko-Mongol mythology: Tengriism—the major ancient belief among Xiongnu, Mongol and Turkic peoples, Magyars and Bulgars—incorporates elements of shamanism. Shamanism is no more a living practice among Hungarians, but remnants have been reserved as fragments of folklore, in folktales, customs.