"Brazil" is a word that belongs to the utopian toponym of medieval times, designating a dream island, land of imagined happiness. The first known record of the word is in a nautical chart drawn up in 1325 by the Genoese Angelo Dalorto, that is: the name "Brazil" already appears on maps when the Cabralina fleet was still 175 years old to see Mount Pascoal. Over time, the term came to denominate the current Brazilian territory. And the first tribal groups found here by European navigators were called "brasis". They were basically groups of the Tupi people, who then dominated almost the entire coastal façade of the Brazilian tropics, extending from Ceara to Sao Paulo. The purpose of this first program in the series is to present an overview of the Tupinambá-Tupiniquim sociocultural formation: the village organization, the belief system, the anthropophagy, the agricultural practices, the wars and parties, the astronomical knowledge, the kinship plot, life-loving and sexual, in short, to show who were those cannibals who circulated, with their myths and rites, the coastal plains of the Brazilian Land - and who, through the miscegenation and didactics of the tropics, constituted, with the Lusitans, the original "protocell" of our people: the luso-tupi protocell.