The Social Democratic Party which been formed in 1891 had split into two radical factions: the Bulgarian Communist Party (BCP) and the Bulgarian Workers' Socialist-Democratic Party (BWSDP). ###>Le Parti Social Démocratique que formé dans 1891 avait coupé en deux factions radicales : le parti communiste bulgare (BCP) et la partie Socialiste-Democratic des ouvriers bulgares (BWSDP).