Original: The foundation of the PS and the "Union of the Left" (1969-1981) In 1969, during the Alfortville Congress, the SFIO was replaced by the Socialist Party (Parti socialiste or PS).
Simplified: The foundation of the PS and the "Union of Left" (1969-1981) In 1969 the SFIO was replaced by the Socialist Party (Parti socialiste or PS).