Tupi-Sprache
Jesuit priests such as fathers José de Anchieta and Manuel da Nóbrega studied and recorded their language and founded mixed settlements, such as São Paulo dos Campos de Piratininga, where colonists and Indians lived side by side, speaking the same "Língua Geral" (common language), and freely intermarried. They began also to establish more remote villages peopled only by "civilized" Indians, called "Missions", or reductions (see the article on the Guarani people for more details).