Did you know the Maya didn't have just one calendar? In fact, they had many. They had a religious calendar (tzolk'in) which consisted of 260 days, an agricultural calendar (haab) which consisted of 365 days and a long count calendar which fixed dates in absolute time and had been around since August 13, 3114 BCE, when the current world was created, according to Maya belief. Learn more about the Maya calendar in this informative interview with Dr. Nikolai Grube, Curator of Maya: The Exhibition. D