▁increasing ▁competition ▁from ▁other ▁priv ately ▁run ▁the at res , ▁such ▁as ▁the ▁Cas ino ▁Theatre ▁and ▁ ▁Fol k ete at ret ▁( 1 8 5 7 ). ▁ ▁History ▁ ▁The ▁theatre ▁ ▁Kal ke ball en ▁was ▁constructed ▁in ▁ 1 8 1 9 ▁and ▁served ▁as ▁a ▁ven ue ▁for ▁amateur ▁theatre . ▁Most ▁of ▁the ▁city ' s ▁gu ild s ▁had ▁their ▁own ▁theatre ▁companies . ▁Some ▁of ▁the ▁amateur ▁actors ▁who ▁had ▁their ▁debut ▁at ▁Kal ke ball en ▁would ▁later ▁have ▁care ers ▁at ▁some ▁of ▁the ▁city ' s ▁professional ▁the at res . ▁These ▁included ▁Fol k ete at ret - found er ▁Hans ▁Wilhelm ▁L ange , ▁Har ald ▁and ▁Val dem ar ▁Kol ling , ▁Freder ik ▁Hels eng reen , ▁Kn ob la uch , ▁Freder ik ▁Mad sen ▁and ▁Christian ▁Schmidt . ▁Stud ents ▁at ▁the ▁Royal ▁Dan ish ▁Theatre ▁were ▁also ▁among ▁the ▁actors . ▁The ▁theatre ▁closed ▁in ▁ 1 8 6 4 ▁as ▁a ▁result ▁of ▁increasing ▁competition ▁from ▁other ▁priv ately ▁run ▁the at res . ▁ ▁Later ▁history ▁of ▁the ▁building ▁ ▁The ▁building ▁was ▁then ▁operated ▁as ▁a ▁dance ▁ven ue ▁under ▁the ▁name ▁E ri ks ens ▁Sal on . ▁The ▁entertain ment ▁ven ue ▁V alk y rien ▁on ▁V ester bro g ade ▁re located ▁to ▁the ▁building ▁in ▁the ▁late ▁ 1 8 9 0 s . ▁It ▁closed ▁in ▁the ▁ 1 9 1 4 . ▁The