Conversation so far:
What was the background of the Indigenous languages of the Americas?
Indigenous languages of the Americas are spoken by indigenous peoples from Alaska, Nunavut, and Greenland to the southern tip of South America, encompassing the land masses that constitute the Americas.
Which language was typically spoken in North and South America before first contact with the Europeans?
The indigenous languages of the Americas had widely varying demographics, from the Quechuan languages, Aymara, Guarani, and Nahuatl, with millions of active speakers, to many languages with several hundred speakers.

Question: What were the cultures like?
Self-contained rewrite: What were the cultures of the indigenous peoples of the Americas like?