1970s in Helsinki

1975 non-binding European and North American political agreement

1971 edition of the European Athletics Championships

1974 edition of the World Ice Hockey Championships

European Volleyball Championship

judo competition

figure skating competition

1980 edition of the World Junior Ice Hockey Championships

1978 edition of the IIHF European U18 Championship

international speed skating competition

1973–1994 intergovernmental security organisation, now the OSCE

karate competition