í ny i ▁family ▁had ▁moved ▁to ▁Dob š in á ▁from ▁Italy ▁because ▁Eug ene ' s ▁father ▁accepted ▁a ▁position ▁as ▁a ▁min ing ▁engineer ▁in ▁this ▁city . ▁This ▁suggests ▁that ▁the ▁original ▁name ▁probably ▁was ▁R uff ini . ▁Eug ene ▁attended ▁primary ▁school ▁in ▁Dob š in á , ▁and ▁high ▁school ▁in ▁Ke ž mar ok ▁( K és m ár k ). ▁He ▁then ▁took ▁up ▁min ing ▁studies ▁in ▁B ansk á ▁Š t ia v nica ▁( S elm ec b ány a ), ▁where ▁he ▁earned ▁his ▁degree ▁in ▁ 1 8 6 9 . ▁On ▁his ▁return ▁to ▁Dob š in á , ▁he ▁became ▁a ▁min ing ▁over se er ▁and ▁met all urg ical ▁inspect or . ▁ ▁Ex pl oration ▁of ▁the ▁Dob š in ská ▁ice ▁cave ▁While ▁tour ing ▁the ▁Du č a ▁hill ▁near ▁Dob š in á ▁with ▁his ▁friend , ▁L t . ▁Gustav ▁Lang , ▁in ▁ 1 8 6 9 , ▁R uff í ny i ▁threw ▁a ▁stone ▁into ▁an ▁opening ▁in ▁the ▁rock ▁that ▁was ▁known ▁as ▁Stud en á ▁d iera ▁(" C old ▁H ole ") ▁in ▁local ▁l ore . ▁From ▁the ▁multiple ▁and ▁delayed ▁e chos , ▁the ▁men ▁got ▁the ▁impression ▁that ▁a ▁substantial ▁cave ▁must ▁extend ▁beyond ▁the ▁entrance ▁and ▁decided ▁to ▁return ▁for ▁an ▁expl oration . ▁On ▁June ▁ 1 5 , ▁ 1 8 7 0 , ▁R uff iny i