Each nation has its own legendary history and "pre-philosophy": Hindus - "Rigveda," Iranians - "Avesta," Jews - "Old Testament," etc. Among the Turkic peoples of Turan, this is the ancient doctrine of "Jasau іzі" ("Iasi," "Path of Existence"), the guardian and repeater of which was an associate of Genghis Khan and Jochi Khan named Maiki-biy. He is rightfully considered the founder of the Kazakh classical school of biys.