▁Stefan ▁Cz arn owski ▁( 1 9 3 5 - 1 9 3 8 ). ▁In ▁ 1 9 3 5 , ▁P TS ▁and ▁P IS ▁joint ly ▁organized ▁ ▁the ▁second ▁Polish ▁Soci olog o cial ▁Convention ▁in ▁Wars aw . ▁Both ▁bodies ▁existed ▁until ▁the ▁out break ▁of ▁World ▁War ▁II ▁in ▁ 1 9 3 9 . ▁Tow ards ▁the ▁end ▁of ▁the ▁war , ▁in ▁ 1 9 4 4 ▁the ▁P IS ▁was ▁react iv ated ▁in ▁the ▁Soviet - control led ▁part ▁of ▁the ▁country , ▁but ▁not ▁so ▁the ▁P TS ; ▁some ▁of ▁its ▁previous ▁tasks ▁were ▁re ass igned ▁to ▁the ▁new ▁P IS . ▁ ▁In ▁ 1 9 5 1 , ▁soci ology ▁was ▁declared ▁a ▁" bour ge ois " ▁science ▁in ▁Poland . ▁All ▁soci ological ▁university ▁depart ments ▁and ▁instit utes , ▁including ▁the ▁P IS , ▁were ▁closed , ▁their ▁employees ▁transferred ▁to ▁neighbour ing ▁discipl ines ▁such ▁as ▁philosophy ▁or ▁history . ▁ ▁After ▁soci ology ▁had ▁been ▁read m itted ▁to ▁academic ▁life ▁in ▁Poland ▁in ▁ 1 9 5 6 , ▁a ▁group ▁of ▁soci olog ists ▁at ▁the ▁univers ities ▁of ▁Wars aw ▁and ▁Ł ód ź ▁around ▁Stanisław ▁O ss owski ▁set ▁up ▁a ▁Soci ological ▁Section ▁within ▁the ▁Polish ▁Philosoph ical ▁Association ▁( Pol skie ▁Tow arz yst wo ▁Fil oz of icz ne ), ▁which ▁became ▁a ▁member ▁of ▁the ▁International ▁Soci ological ▁Association ▁( IS A ) ▁( of