Brazilian Sign Language (Libras) was legally recognized by Federal Law 10.436/2002, regulated by Federal Decree 5626/2005. Since then, it has designed a broad institutional framework for its consolidation. This investigation is precisely about the process of constitution of that language. Through ethnographic fieldwork was considered a ample empirical universe: schools for the deaf, Catholic parishes, Protestant congregations, associations of the deaf, spaces of sociability, organized social movement and academic institutions. The intention is to describe and analyze general sociological processes that structure that language. To date, this research described five dimensions: primary forms of association of deaf people, spaces of sociability, public speech in signs, linguistic elite and legitimate ways to use signs.
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