section_path: History by region/Americas/South America
section_name: South America
paragraph_text: South America
  
  South American civilization was concentrated in the Andean region which had already hosted complex cultures since 2,500 BCE. East of the Andean region, societies were generally semi nomadic. Discoveries on the Amazon River Basin indicate the region likely had a pre-contact population of five million people and hosted complex societies. Around the continent numerous agricultural peoples from Colombia to Argentina steadily advanced through numerous stages of development from 500 CE until European contact.