This if made by means of the creation of the first public agency, in 1910, destined to deal with the aboriginal questions and responsible for tutoring them: the Service of Protection to Indians – S.P.I., idealized and implemented for Rondon Marshal. This agency guarantee the philosophy of national integration, supported by means of the influences proceeding from the philosophical theory of the positivismo – conceptual reference of the time – in which to indian was imposed the culture of the effective social context from the swaggerer who praised the cultural assimilation. With developing of the Republic, the Constitution of 1934 foresees in art. 129, that the ownership of lands of the intitled indians, would have to be respected since that the indians there were permanently located. At this moment, it is declared unfeasibility of commercialization of aboriginal lands in accord to the rules of the relative granted legal incapacity to the indians. In 1961, in the government of Jnio Pictures, from the creation of the National Park of the Xingu, it had the alteration of the lines of direction that guided the treatment of the aboriginal questions, that of form more respectful human being and to the found multiple diversity between the diverse aboriginal communities, opens way for the posterior legislaes.

Ahead of a description permeado for corruption stories, in 1967 S.P.I. is substituted by the National Foundation of the Indian? FUNAI, that although to give continuity to integralista character of the actions praised for the previous agency, marks the beginning of the legal definitions that perfazem conceptualizations of recognition to the aboriginal peoples, approaching aspects of the ethnic, territorial identity, added to the health and education of the indian. In the threshold of the Brazilian military dictatorship, in 1969, the busy lands for the aboriginal peoples had appeared as pertaining to the Union, without possibility of ownership on the part of the aboriginal communities.