astic ▁the olog ians , ▁including ▁Thomas ▁Aqu inas , ▁was ▁then ▁held ▁only ▁by ▁a ▁few , ▁among ▁whom ▁he ▁mentioned ▁Louis ▁Bill ot ▁( 1 8 4 6 – 1 9 3 1 ) ▁and ▁Ad ol phe ▁Tan qu ere y ▁( 1 8 5 4 – 1 9 3 2 ). ▁In ▁the ▁ 1 9 5 0 s , ▁Antonio ▁Pi ol anti ▁recognized ▁as ▁orders ▁only ▁epis cop acy , ▁priest hood ▁( pres by ter ate ) ▁and ▁dia con ate , ▁the ▁three ▁whose ▁transmission ▁is ▁reserved ▁to ▁b ish ops . ▁In ▁speaking ▁of ▁the ▁hier arch ical ▁structure ▁of ▁the ▁Church , ▁the ▁Second ▁V at ican ▁Council ▁mentioned ▁only ▁these ▁three ▁orders , ▁not ▁minor ▁orders ▁or ▁sub dia con ate . ▁ ▁By ▁Pope ▁Paul ▁VI ' s ▁mot u ▁proprio ▁Minister ia ▁qu a ed am ▁of ▁ 1 5 ▁August ▁ 1 9 7 2 , ▁the ▁term ▁" min or ▁orders " ▁has ▁been ▁replaced ▁by ▁that ▁of ▁" min ist ries ". ▁Two ▁of ▁what ▁were ▁called ▁minor ▁orders , ▁those ▁of ▁reader ▁and ▁a col y te , ▁are ▁kept ▁throughout ▁the ▁Latin ▁Church , ▁and ▁national ▁epis cop al ▁con ferences ▁are ▁free ▁to ▁use ▁the ▁term ▁" sub de acon " ▁in ▁place ▁of ▁that ▁of ▁" ac oly te ". ▁The ▁mot u ▁proprio ▁specified ▁the ▁functions ▁of ▁each ▁of ▁these ▁two ▁minist ries , ▁A ▁pres cribed ▁interval , ▁as ▁decided ▁by