In 1957, after several weeks of work, Indiana Jones had discovered the secret entrance to the underground temple. Despite George McHale's warnings of a storm, Jones continued, crawling across the massive calendar stone towards the central statue. Reading the glyphs as he passed, he saw that the outer ring contained the Mayan genesis story and the birth date of the world. The inner rings told the story of the K'iche Maya tribe, which normally settled in Guatemala, and whose presence had not yet been seen this far north. The story also included the origins of Kukulkan. The innermost ring listed the end of the Long Count calendar.