GDR - the carnival and the meeting of participants of the X world festival of youth and students in Berlin. GDR - swimming Competition at the European Cup in Berlin (Vladimir Bure - European record). Czechoslovakia - the Visit of a group of Chilean youth, the participants of the festival in Berlin, headed by the Secretary-General of KSM Chile Gladys Marin. The opening of Chilean film in Prague. Yugoslavia - the Construction of a hydroelectric power station in Mratinje. Afghanistan - Afghan children rural school for children of nomads and the Metropolitan school. Yugoslavia - Youth building "Sava-73" on the right Bank of the river Sava. Germany - the problem of the financial situation of adolescents and the possibility of obtaining a advanced schooling, teenagers on the street, in family, in class. England - the Competition to fly homemade aircraft.