1 8 . ▁The ▁mort ality ▁rate ▁was ▁ 3 4 %, ▁which ▁was ▁the ▁highest ▁among ▁the ▁Finn ish ▁Civil ▁War ▁prison ▁cam ps . ▁The ▁dece ased ▁were ▁buried ▁in ▁a ▁mass ▁grave ▁outside ▁the ▁prison . ▁A ▁mem orial ▁was ▁ere cted ▁in ▁ 1 9 5 1 ▁and ▁a ▁permanent ▁exhibition ▁opened ▁in ▁ 2 0 0 8 . ▁ ▁Political ▁prisoners ▁ ▁After ▁the ▁mass ▁am nest ies ▁of ▁the ▁Civil ▁War ▁prisoners ▁T amm isa ari ▁pen it enti ary ▁was ▁turned ▁into ▁a ▁labor ▁camp ▁for ▁political ▁prisoners , ▁meaning ▁the ▁activ ists ▁of ▁the ▁b anned ▁Commun ist ▁Party ▁of ▁Finland ▁and ▁Social ist ▁Work ers ' ▁Party ▁of ▁Finland . ▁Fem ale ▁prisoners , ▁like ▁Her tta ▁Ku us inen , ▁were ▁held ▁at ▁the ▁Hä me ▁Castle ▁in ▁Hä me en lin na . ▁The ▁political ▁prisoners ▁had ▁some ▁privileges , ▁they ▁had ▁less ▁work ▁and ▁were ▁allowed ▁to ▁order ▁newsp apers . ▁As ▁the ▁commun ists ▁spent ▁a ▁lot ▁of ▁time ▁in ▁reading ▁and ▁studying ▁sm ugg led ▁Marx ist ▁literature , ▁the ▁camp ▁was ▁nick named ▁the ▁" Univers ity ▁of ▁T amm isa ari ". ▁ ▁During ▁the ▁ 1 9 2 0 s ▁and ▁ 1 9 3 0 s ▁the ▁number ▁of ▁captured ▁commun ists ▁varied ▁between ▁ 1 0 0 ▁and ▁ 6 0 0 . ▁The ▁highest ▁number ▁was ▁after ▁the ▁declaration ▁of ▁the ▁ 1 9 3 0 ▁Commun ist ▁La ws . ▁In ▁July