Marajoara culture

The Marajoara or Marajó culture was an ancient pre-Cabraline era culture that flourished on Marajó island at the mouth of the Amazon River in northern Brazil. In a survey, Charles C. Mann suggests the culture appeared to flourish between 800 AD and 1400 AD, based on archeological studies. Researchers have documented that there was human activity at these sites as early as 1000 BC. The culture seems to have persisted into the colonial era.