🇲🇽 Mexico · Pyramid
Chiapa de Corzo Archaeological Zone
Formative 1400 BCE–300 CE (Escalera phase) · Mixe-Zoque (Chiapa de Corzo tradition) / Olmec–Maya bridge
Zoque Olmec–Maya capital with Mound 5 22 m and Stela 2 Long Count 36 BCE, earliest date in Mesoamerica.