Question

Most people in the Aztec, Olmec, Inca, and Mayan tribes were ___________

Answer 1

Ancient or religious or civilised

Answer 2

Two other similarities between these three civilizations is the use of a calendar, which they used to predict eclipses, schedule religious ceremonies, and determine when to plant/harvest crops, and go off to war, (more so the Mayas and the Aztecs), and they all had some form of writing system.