<P> In the 2008 law 18.437 ("Ley General de Educación. 12 de Diciembre de 2008"), LSU is "considered" to be one of the mother tongues of Uruguayan citizens (along with Uruguayan Spanish and Uruguayan Portuguese . In the policy documents of the Comisión de Políticas Lingüísticas en la Educación Pública (the Public Education Language Policy Commission, which is part of the Administración Nacional de Educación Pública, ANEP) it is proposed that LSU would be the principal language of deaf education . </P> <P> Venezuelan Sign Language was recognised in the country's constitution on November 12, 1999 . </P> <P> The various Zimbabwean sign languages, grouped together as "sign language", are recognised in the 2013 Constitution of Zimbabwe as one of the sixteen "officially recognised languages of Zimbabwe". </P>

When was sign language recognized as a language