evidenceobservational
Mongol tradition involved hiding the tomb to protect the spirit of the deceased leader.
90% confidence
Mongol burial customs for great leaders involved secrecy and protection rituals. According to traditional stories, after Genghis Khan died, his followers buried him in a secret place and took extreme steps to ensure no one could find it. This included killing those who witnessed the burial and possibly diverting natural features like rivers to cover the site.
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