Answer:
Olmecs
Step-by-step explanation:
In short, the Maya came first, and settled in modern-day Mexico. Next came the Olmecs, who also settled Mexico. They didn't build any major cities, but they were widespread and prosperous. They were followed by the Inca in modern-day Peru, and finally the Aztecs, also in modern-day Mexico.
Anthropologists generally fall into two groups when considering the beginnings of the Mayans, arguing either that the civilization developed independently or that the Mayans were influenced largely by the older Olmec civilization.