Conversation so far:
What is an example of a indigenous group?
Olmec; Toltec; Teotihuacano' Zapotec; Mixtec; Aztec and Maya civilizations.
Who are the Olmec?
A few, such as the Mayan, Olmec, Mixtec, and Nahua peoples, had their own written languages and records.

Question: What other cultural elements they had?
Self-contained rewrite: Other than written language and records, what other cultural elements did indigenous people from the Americas have ?