Participants in the Prochrevsky movements of the NOD and SERB once again tried to disrupt the ceremony of awarding the winners of the historical research competition "Man in the History. Russia - XX Century", which is conducting the International Society "Memorial" among high school students. The inconsistent action lasted about an hour, then the police detained its participants. The authors of the best works from 24 regions of Russia came to the award ceremony. This year the competition of historical research turned 20 years old.