In Brazil, there are today around 51,000 Guarani living in seven states, making them the country’s most numerous indigenous tribe. Many others live in neighboring Paraguay, Bolivia and 
Argentina.The land around Iguazú belonged to the Guaraní Indians.When the Spanish and Portuguese arrived around 1500, this forest was the preserve of the Guaraní, a tribe of semi-nomadic hunter-gatherers and farmers Communities were scattered across what, to them, was borderless territory spanning Argentina, Brazil, Paraguay and Bolivia. The lives of the Guaraní altered irrevocably with the arrival of the conquistadors; they became part of the labour force for the New World.