BOC was founded in
Barcelona in 1931, as the mass front of the
Catalan-Balearic Communist Federation (FCCB), after the merger of the
Catalan Communist Party into FCCB. FCCB, which made up the nucleus of BOC, later changed its name to Iberian Communist Federation, thus stating its intention to expand itself and BOC throughout
Spain. Prominent leaders of BOC were
Joaquín Maurín,
Hilari Arlandis,
Jordi Arquer,
Pere Bonet,
Víctor Colomer,
Abelard Tona Nadalmai and
Àngel Estivill. In November 1935, the majority of BOC merged with the
Trotskyist Communist Left of Spain (ICE) to form the
Workers' Party of Marxist Unification (POUM; Catalan: ''Partit Obrer d'Unificació Marxista''). The minority stayed out of the merger and later joined the
Unified Socialist Party of Catalonia (PSUC). ==Publications==