The were the earliest people to settle in mesoamerica. They were an advanced people who established trade connections with neighboring empires such as the. They thrived from 15000 BC to800 BC. However, the reason for their decline are

The earliest people to settle in Meso-America are the Olmec. The Olmec had a rich society and traded with neighboring tribes such as the Mokaya which were a civilization of the Soconusco region. The Olmec civilization was thought to decline because of natural ecological changes like climate change or human actions such as warfare.