section_path: South America/Marajoara culture
section_name: Marajoara culture
paragraph_text: Marajoara culture
  
  The Marajoara culture flourished on Marajó Island at the mouth of the Amazon River in northern Brazil between 800 and 1400 CE. The Marajoara consisted of a complex society that built mounds and constructed sophisticated settlements. The indigenous people of the area adopted methods of large-scale agriculture through the use of terra preta, which would support complex chiefdoms. Studies suggest that the civilization housed around 100,000 inhabitants.