Which group of people shared the characteristics described in this text? the olmec also invented a calender and they carved hieroglyphic writing into stone

The Olmec was the first Mesoamerican Civilization, therefore they were ancestors of the Mayans

Explanation:

The Olmec are known as innovators and inventors. Their influenced spread not only to the Mayans but also to other civilizations in Mesoamerica. Some of their inventions include a writing system, the calendar and number zero. Archaeologists have found proof of the Long Count Calendar along with the concept of Zero were used years before the Maya was a functioning civilization. Further inventions and concepts attributed to the Olmecs that other civilizations used are the ballgame, religions and human sacrifice, popcorn and compass.

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demand is the need and oportunity to buy a given good or service.