▁and ▁Roma ▁( 1 . 5 %). ▁ ▁Dem ographic ▁evolution ▁according ▁to ▁the ▁cens uses : ▁ ▁Half ▁the ▁population ▁of ▁the ▁town ▁prof esses ▁Roman ▁Catholic ism ▁( 5 0 . 0 5 % ), ▁while ▁the ▁remaining ▁half ▁is ▁primarily ▁divided ▁between ▁Hung arian ▁Re formed ▁( 3 0 . 1 4 % ), ▁Un itar ian ▁( 1 4 . 7 1 % ), ▁and ▁Roman ian ▁Orth odox ▁( 2 . 5 4 %) ▁communities . ▁ ▁History ▁ ▁The ▁town , ▁as ▁the ▁former ▁seat ▁of ▁the ▁U d var hely ▁com it atus , ▁is ▁one ▁of ▁the ▁historical ▁cent ers ▁of ▁Sz ék ely ▁Land . ▁The ▁first ▁known ▁reference ▁to ▁the ▁city ▁was ▁in ▁a ▁pap al ▁register ▁of ▁duties ▁in ▁ 1 3 3 4 ▁when ▁it ▁was ▁mentioned ▁by ▁its ▁Hung arian ▁name , ▁a ▁sac erd os ▁de ▁O du or hel . ▁Since ▁ 1 6 1 5 , ▁when ▁Gabriel ▁Beth len , ▁Prince ▁of ▁Trans ylvan ia , ▁re aff ir med ▁the ▁rights ▁of ▁the ▁town , ▁the ▁place ▁has ▁been ▁referred ▁to ▁as ▁Sz ék ely ud var hely . ▁ ▁U d var hely ▁was ▁the ▁location ▁of ▁the ▁first ▁assembly ▁of ▁Sz ék ely s ▁in ▁ 1 3 5 7 . ▁A ▁for tr ess ▁was ▁built ▁in ▁the ▁town ▁in ▁ 1 4 5 1 . ▁It ▁was ▁re built ▁and ▁strength ened ▁by ▁John ▁II ▁Sig ism und ▁Z á pol