And when will this catastrophe strike? Soon, according to the Aztec priests. They believed that the Fifth Sun was already very old and approaching the end of its cycle (hence the wrinkles on the face of Tonatiuh). Ancient meso–American traditions dated the birth of this epoch to a remote period corresponding to the fourth millennium BC of the Christian calendar.13 The method of calculating its end, however, had been forgotten by the time of Aztecs.
