. ▁In ▁the ▁first ▁ten ▁years ▁of ▁Poland ' s ▁re development , ▁the ▁total ▁number ▁of ▁schools ▁increased ▁by ▁almost ▁ 1 0 , 0 0 0 ▁thanks ▁to ▁the ▁official ▁dec ree ▁on ▁public ▁education . ▁By ▁the ▁time ▁of ▁the ▁Naz i - S ov iet ▁invasion ▁of ▁ 1 9 3 9 , ▁some ▁ 9 0 % ▁of ▁children ▁were ▁in ▁schools ▁across ▁the ▁country , ▁the ▁number ▁limited ▁only ▁by ▁the ▁short age ▁of ▁qualified ▁staff ▁and ▁lack ▁of ▁ade qu ate ▁local es ▁especially ▁in ▁the ▁villages . ▁ ▁In ▁ 1 9 2 1 ▁a ▁major ▁trade ▁fair ▁was ▁established ▁in ▁L w ów ▁right ▁after ▁the ▁end ▁of ▁host ilities ▁there ; ▁designed ▁to ▁facil itate ▁new ▁business ▁partners hips ▁from ▁within ▁Poland ▁but ▁also ▁from ▁Gre ater ▁Roman ia , ▁Hung ary ▁and ▁the ▁Soviet ▁Union ▁among ▁other ▁places . ▁The ▁annual ▁Eastern ▁Trade ▁Fair ▁or ▁the ▁T arg i ▁W sch od nie ▁( as ▁it ▁was ▁known ▁in ▁Polish ) ▁by ▁ 1 9 2 8 ▁could ▁bo ast ▁some ▁ 1 , 6 0 0 ▁exhib itors , ▁ 4 0 0 ▁of ▁them ▁being ▁foreign ▁fir ms . ▁The ▁fair ▁attract ed ▁ 1 5 0 , 0 0 0 ▁visitors ▁that ▁year , ▁with ▁tram ▁connections ▁to ▁the ▁city , ▁custom s ▁office ▁and ▁tele phone ▁exchange ▁on ▁site . ▁Also ▁in ▁ 1 9 2 8 , ▁a ▁similar ▁trade ▁fair ▁was ▁launched ▁in ▁Wil no ▁(