▁and ▁Herz egov ina ' s ▁Catholic ▁and ▁Orth odox ▁communities , ▁respectively . ▁ ▁In ▁the ▁Kingdom ▁of ▁Y ug oslav ia , ▁the ▁Ser bs , ▁Cro ats ▁and ▁Sloven es ▁were ▁the ▁constitu ent ▁(" old ") ▁nations . ▁During ▁the ▁reign ▁of ▁King ▁Aleks and ar ▁I , ▁a ▁modern ▁single ▁Y ug oslav ▁identity ▁was ▁un success fully ▁propag ated ▁to ▁er ase ▁the ▁particular istic ▁ident ities . ▁With ▁the ▁formation ▁of ▁Social ist ▁Y ug oslav ia , ▁there ▁were ▁six ▁republic s ▁and ▁five ▁constit utive ▁nations , ▁adding ▁Mac ed oni ans ▁and ▁Mont en egr ins ▁( wh ose ▁ident ities ▁were ▁not ▁earlier ▁recognized ); ▁the ▁Bos n ian ▁Muslim s ▁were ▁recognized ▁only ▁in ▁the ▁late ▁ 1 9 6 0 s . ▁ ▁For ▁the ▁ 1 9 6 1 ▁census ▁a ▁new ▁eth nic ▁category ▁was ▁introduced – Mus lim s – with ▁which ▁ 9 7 2 , 9 5 4 ▁Bos ni ans ▁identified . ▁In ▁ 1 9 6 4 , ▁the ▁Muslim s ▁were ▁declared ▁a ▁narod ▁(" people "), ▁as ▁the ▁other ▁five ▁" pe op les ", ▁but ▁were ▁not ▁as cribed ▁a ▁national ▁republic . ▁In ▁ 1 9 6 8 , ▁the ▁Bos n ian ▁Central ▁Committee ▁declared ▁that ▁"... Mus lim s ▁are ▁a ▁distinct ▁nation ". ▁For ▁the ▁ 1 9 7 1 ▁census , ▁accordingly , ▁" Mus lim s , ▁in ▁the ▁sense ▁of ▁a ▁nation "