The PDD was established on 15 December 1963 by
Sourou-Migan Apithy and
Justin Ahomadégbé-Tomêtin following the overthrow of President
Hubert Maga in a
coup, and replaced the
Dahomeyan Unity Party as the country's sole legal party. The party largely represented the interests of the
Aja,
Fon,
Nago and
Yoruba people of the south and central parts of the country. However, when tensions and instability led Sourou-Migan Apithy and Justin Ahomadégbé to resign by the end of November 1965,
Tahirou Congacou, president of the
National Assembly, assumed the role of interim head of State and dissolved the party on 4 December 1965. ==Election results==