at this point, some of these blocos wanted to gain complete social acceptance and recognition, and in the 1930's started to change their names to samba schools. 

even if not yet called blocos, some of the first ones to be officially licensed by rio's police date back to 1889 - among them were estrela da mocidade, zé pereira, lanceiros, guaranis da cidade nova, bumba meu boi, grupo carnavalesco são cristóvão, teimosos do catete, piratas do amor, filhos de satã, and recreio dos inocentes.

as the political scenery changed, in the 1960's rio de janeiro became home to some of the strongest resistance to the dictatorship, with movements such as tropicalismo taking over the intellectual and artistic elite.