The Mayan, Aztec and Incan civilizations each contributed major accomplishments to the world today. These accomplishments established them as advanced societies during their time. The Incans built a large road system, devised a complex irrigation system and developed their own language. The Mayans constructed the largest structure known until modern times, made drastic accomplishments in mathematics, studied astronomy and formed a calendar. The Aztecs built well-organized cities and developed a writing system based on pictures.
To unite their empire, the Incans formed their own language an…
