Valley to stand out that in this same decade the Brazilian society was victim of the blow that restored the military dictatorship and that it restrained all the movements and all the popular manifestations. The black groups of protest had been also restrained. From 1969, the military dictatorship in such a way censured the publication of notice on aboriginals, death squad and engages in guerilla warfare, as any information on black movement and racial discrimination. With the installation of the ditatorial regimen, the government imposed the people what it would have to be studied since the schools of the basic education until the universities. In this context, from the decade of 1970, the MN and the Movement of Mulheres Negras (MMN) they act in more incisive way to try to influence changes in the educational system and had fought to include the history of the black people in the pertaining to school resume.
This performance it culminates, in 1995, with Marcha I buzzed of the Palmares, when 30 a thousand people had been for Brasilia and had delivered to a document to the Presidency of the Republic pleading politics to fight the inaquality. Six years later, during 3 World-wide Conference against occured Racism in Durban, South Africa, of 30 of August the 7 of September of 2001, the Brazilian government presented proposals and assumed the international commitment to implement measured of affirmative actions to fight racism and the inaqualities in Brazil. This position was taken in result of the pressures and claims of the MN and of the MMN, that has decades fights for measures of combat to the racial inaqualities, particularly in the area of the education. In 2002, the teacher Petronilha Beatriz Gonalves and Silva was indicated, for the MN and the MMN, to occupy a place in the National Advice of Educao (CNE). In the same year, it she considered that the CNE if revealed on the question of the education and the ethnic-racial relations.