▁not ▁built ▁for ▁seg reg ation ▁purposes ▁until ▁ 1 9 3 8 , ▁when ▁North ▁Phoenix ▁High ▁School ▁( now ▁North ▁High ▁School ) ▁opened . ▁ ▁Seg reg ation ▁ ▁For ▁a ▁time , ▁P U HS ▁was ▁a ▁seg reg ated ▁school . ▁While ▁seg reg ation ▁of ▁elementary ▁schools ▁in ▁Arizona ▁was ▁mand ated , ▁seg reg ation ▁of ▁high ▁schools ▁was ▁never ▁required ▁by ▁law . ▁ ▁School ▁seg reg ation ▁in ▁the ▁Phoenix ▁Union ▁High ▁School ▁District ▁began , ▁following ▁anti - A fr ican ▁American ▁sent iments ▁that ▁increased ▁after ▁World ▁War ▁I . ▁A ▁" Dep art ment ▁for ▁Col ored ▁Stud ents " ▁was ▁established ▁at ▁a ▁rear ▁room ▁of ▁P U HS ' s ▁Com mer cial ▁Building ▁in ▁ 1 9 1 8 , ▁with ▁one ▁teacher . ▁The ▁school ' s ▁African ▁American ▁students ▁were ▁then ▁hous ed ▁in ▁two ▁small ▁c ott ages ▁that ▁was ▁separated ▁from ▁the ▁P U HS ▁campus ▁by ▁an ▁ir rig ation ▁d itch . ▁ ▁Event ually , ▁the ▁Phoenix ▁Union ▁Col ored ▁High ▁School ▁( l ater ▁renamed ▁George ▁Washington ▁Car ver ▁High ▁School ) ▁was ▁built ▁on ▁Grant ▁Street . ▁ ▁School ▁seg reg ation ▁pers isted ▁until ▁ 1 9 5 4 , ▁a ▁year ▁after ▁a ▁judge ▁at ▁the ▁Mar ic op a ▁County ▁Super ior ▁Court ▁struck ▁down ▁school ▁seg reg ation ▁in ▁Phoenix ▁high ▁schools ▁as ▁un const itution al , ▁in ▁the ▁case ▁Phill ips ▁vs .