▁the ▁Ple ist oc ene ▁epo ch ▁preceding ▁the ▁Has lach ▁gla ci ation ▁ ▁Has lach ▁gla ci ation , ▁a ▁cold ▁period ▁of ▁the ▁Ple ist oc ene ▁epo ch ▁ ▁Has lach - M ind el ▁inter g la cial , ▁a ▁warm ▁period ▁of ▁the ▁Ple ist oc ene ▁epo ch ▁following ▁the ▁Has lach ▁gla ci ation ▁ ▁See ▁also ▁▁ ▁: de : Has lach ▁in ▁German ▁Wikipedia , ▁a ▁longer ▁list ▁of ▁places ▁and ▁rivers ▁ ▁: de : Ha ß lach ▁in ▁German ▁Wikipedia , ▁a ▁longer ▁list ▁of ▁places ▁and ▁rivers ▁ ▁Nieder has lach , ▁a ▁commune ▁in ▁the ▁Bas - R hin ▁department ▁in ▁Als ace - Ch amp agne - Ar den ne - L or raine ▁in ▁north - e astern ▁France ▁ ▁Ober has lach , ▁a ▁commune ▁in ▁the ▁Bas - R hin ▁department ▁in ▁Als ace - Ch amp agne - Ar den ne - L or raine ▁in ▁north - e astern ▁France <0x0A> </s> ▁Ric ardo ▁P oma ▁( born ▁ 1 9 4 6 ) ▁is ▁the ▁Chief ▁Executive ▁Officer ▁of ▁the ▁family ▁owned ▁con gl omer ate ▁Gru po ▁P oma , ▁based ▁in ▁San ▁Salvador , ▁El ▁Salvador . ▁ <0x09> ▁ ▁P oma ▁obtained ▁an ▁industrial ▁engineering ▁degree ▁from ▁Pr inc eton ▁University ▁in ▁ 1 9 6 7 ▁and ▁an ▁M BA ▁from ▁Harvard ▁Business ▁School ▁in ▁ 1 9 7 0 . ▁When ▁he ▁returned ▁to ▁El ▁Salvador ,