; ▁it ▁was ▁named ▁the ▁General ▁Work ers ' ▁Union ▁( G lav ni ▁rad ni č ki ▁save z ). ▁He ▁died ▁of ▁t uber cul osis ▁on ▁ 2 7   A pril ▁ 1 9 0 6 ▁in ▁Sar aje vo . ▁ ▁Early ▁life ▁and ▁activ ism ▁in ▁Ser bia ▁Mi ć o ▁S ok ol ović ▁was ▁born ▁on ▁ 2 1   Nov ember ▁ 1 8 8 3 ▁in ▁the ▁village ▁of ▁S ok ol ović i ▁in ▁the ▁Rog atica ▁district ▁of ▁the ▁Cond omin ium ▁of ▁Bos nia ▁and ▁Herz egov ina , ▁ruled ▁by ▁Austria - H ung ary . ▁After ▁elementary ▁school , ▁he ▁entered ▁the ▁g ymnasium ▁in ▁Sar aje vo ▁in ▁ 1 8 9 6 . ▁There ▁he ▁completed ▁the ▁first ▁three ▁gr ades , ▁before ▁he ▁lost ▁his ▁st ip end . ▁His ▁father , ▁an ▁imp over ished ▁tail or , ▁sent ▁him ▁in ▁ 1 9 0 0 ▁to ▁Bel grade ▁to ▁learn ▁the ▁craft ▁of ▁book binding . ▁In ▁August ▁ 1 9 0 3 , ▁he ▁joined ▁the ▁trade ▁union ▁of ▁book bind ers ▁of ▁the ▁Kingdom ▁of ▁Ser bia ▁and ▁soon ▁became ▁the ▁secretary ▁of ▁this ▁organisation . ▁Short ly ▁afterwards , ▁he ▁also ▁joined ▁the ▁Ser bian ▁Social ▁Democratic ▁Party ▁( SS DP ). ▁He ▁was ▁the ▁delegate ▁of ▁the ▁book bind ers ' ▁organisation ▁at ▁the ▁third ▁con gress ▁of ▁Ser bia ' s ▁trade ▁un ions , ▁held ▁in ▁March