▁( S NA ' s ) ▁that ▁provide ▁assistance ▁to ▁students ▁with ▁additional ▁needs , ▁it ▁was ▁the ▁first ▁second ▁level ▁unit ▁opened ▁in ▁County ▁L outh . ▁ ▁History ▁Ar de e ▁Community ▁School ▁( also ▁known ▁as ▁St . ▁Kill ian ’ s ) ▁was ▁established ▁in ▁ 1 9 7 4 ▁and ▁was ▁the ▁first ▁Community ▁School ▁outside ▁the ▁Gre ater ▁Dublin ▁area , ▁it ▁a ims ▁to ▁ful fill ▁the ▁secondary ▁educational ▁needs ▁of ▁Ar de e ▁and ▁its ▁surrounding ▁areas . ▁The ▁school ▁was ▁founded ▁as ▁an ▁am alg am ation ▁of ▁three ▁schools ▁which ▁had ▁previously ▁existed ▁independently : ▁St . ▁Anne ’ s ▁Con vent ▁of ▁Mer cy , ▁De ▁La ▁S alle ▁Brothers ’ ▁School ▁and ▁the ▁V oc ational ▁School , ▁many ▁of ▁the ▁teachers ▁who ▁worked ▁in ▁one ▁of ▁the ▁three ▁schools ▁continued ▁their ▁work ▁in ▁Ar de e ▁Community ▁School ▁ ▁Sport ▁ ▁L enn on ▁Cup ▁ ▁In ▁ 2 0 1 2 , ▁the ▁Senior ▁G ael ic ▁football ▁team , ▁under ▁the ▁guidance ▁of ▁Mark ▁G ils en an , ▁a ▁Math s ▁teacher ▁in ▁A CS , ▁won ▁the ▁L enn on ▁cup ▁for ▁the ▁first ▁time , ▁defe ating ▁St . ▁Mary ' s ▁of ▁D rog h eda ▁on ▁a ▁sc or eline ▁of ▁ 4 - 1 1 ▁to ▁ 0 - 7 . ▁The ▁following ▁year , ▁Ar de e ▁made ▁it ▁back ▁to ▁the ▁L enn on ▁cup ▁vict orious ▁once ▁again ,