▁to ▁establish ▁an ▁organized ▁Jewish ▁social ist ▁movement ▁in ▁this ▁city ... ▁However , ▁the ▁new ▁C UP ▁regime ▁in ▁the ▁Empire ▁was ▁susp icious ▁about ▁the ▁activities ▁of ▁Ben aro ya ▁regarding ▁his ▁Bulgar ian ▁roots . ▁Turkish ▁Review ▁of ▁B alk an ▁Studies , ▁Vol umes ▁ 1 0 – 1 1 , ▁Ort ado ğ u ▁ve ▁B alk an ▁ İ n ce lem eler i ▁V ak f ı , ▁Is is , ▁ 2 0 0 5 , ▁p . ▁ 8 3 . ▁▁ ▁The ▁F édération ▁Social iste ▁O uv rière ▁▁ ▁Ide al istic ▁and ▁p rag m atic ▁at ▁the ▁same ▁time , ▁in ▁Th ess al on iki ▁Ben aro ya ▁played ▁a ▁leading ▁role ▁in ▁the ▁creation , ▁in ▁ 1 9 0 9 , ▁of ▁the ▁mainly ▁Jewish ▁Social ist ▁Work ers ' ▁Federation , ▁or ▁in ▁Lad ino , ▁Feder acion . ▁The ▁organization ▁took ▁this ▁name ▁because , ▁built ▁on ▁the ▁feder ative ▁model ▁of ▁the ▁Social ▁Democratic ▁Party ▁of ▁Austria , ▁it ▁was ▁conce ived ▁as ▁a ▁feder ation ▁of ▁separate ▁sections , ▁each ▁representing ▁the ▁four ▁main ▁eth nic ▁groups ▁of ▁the ▁city : ▁Jews , ▁Bulg ari ans , ▁Gree ks ▁and ▁Tur ks . ▁It ▁published ▁its ▁literature ▁in ▁the ▁languages ▁of ▁these ▁four ▁groups ▁( i . e ., ▁Lad ino , ▁Bulgar ian , ▁Greek ▁and ▁Turkish , ▁respectively ) ▁but ▁in ▁practice ▁the ▁two ▁latter ▁sections ▁were ▁under - re present