The history of the Incas!

The incas never created a wheel and never created a system of writing. The emperor and the spirits of his predecessor’s mummies were the most religious leaders.  They were assisted by a power structure of priests headed by the high priest of Coricancha, the most important temple of the Inca state religion.  The high priest was called Villac-umu, “the sorcerer who speaks,” and was also related to the first Inca and was greatly respected. His powers included appointing and removing priests, and controlling temples and shrines.

INCAN CALENDER?

The Incan calendar was important to the ancient Incas for religious reasons. Each calendar month hosted a different religious festival. The Incan calendar was divided into 12 months. Each month was divided into 3 weeks. Each week had 10 days.  The Incas used special towers called "time makers" that told them when a new month was beginning. Time makers used the position of the sun to mark the passage of time.
Occasionally, time got off track a bit. When that happened, the Incas simply added a couple of days until the time makers were in line.