The Mayan civilization. They had various states & cities, city-states shared many traits and beliefs. Their writing showed that they are the only indigenous people.Besides the writing system they also had a calendar system that was divided into five cycles, a 260 day ritual cycle, and a 365 day based on the solar system. Their type of mathematics allowed them to have the ability to observe the night skies to plot the cycles of the planets. It helped along with the colander, and to accurately calculate the length of the solar year.The Mayans claimed to have a lot of knowledge on astronomy and kept watch of the movements of the following planets: Mercury, Venus, Mars, and Jupiter. The Mayans worshiped many gods they had a god for basically every thing you can think of. Cited: http://indians.org/welker/maya.htm
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