Maurice Cotterell, an engineer and amateur scientist who researches the Mayan civilization, discovered a mysterious number that kept appearing on many ancient Mayan temples and steles: 1,366,560.
另一位鑽研馬雅文化的當代工程師兼業餘科學家摩利斯．科特羅，則在許多馬雅古廟與碑石中，發現一組一再重複出現的密碼：1,366,560。