The party had its origin in the Movimento para a Autodeterminação do Povo Açoriano (MAPA) (Self-determination Movement for the Azorean People) founded in 1979 by Francisco da Costa Matos. The Movement and, later the PDA, promoted a form of home rule for the Azores, following the example of the Bermudas. While registered with the Supremo Tribunal de Justiça (Supreme Court) on 5 November 1979 as the União Democrática do Atlântico (Democratic Union of the Atlantic), it had changed its name to the PDA by the 1983 election. More information...
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