Final answer:
The Mayan calendar did not predict the end of the world in 2012, but marked the end of a calendar cycle.
Step-by-step explanation:
The subject of this question is History. The question is asking about the calendar of the Mayan civilization ending on December 23, 2012. According to historical and archaeological evidence, the Mayan calendar did not predict the end of the world on this date. Instead, it marked the end of a calendar cycle and would have been celebrated with major festivities.