Itzamna' is the son of the creator god Hunab Ku, and ruler of the heavens, day, and night. He gave the Mayans the foundations of their civilization including growing corn, writing, the calendar and medicine. With this skill, Alexa can ask Itzamna' the current day on the Mayan calendar which consists of five interlocking cycles of different lengths called "baktun", "katun", "tun", "uinal" and "kin".