1. To commemorate the 10th anniversary of the signing of the Convention for the Protection of the Danube, the International Commission for the Protection of the Danube River (ICPD) celebrated International Danube Day for the first time on 29 June 2004.

  2. Since 2004 an annual nationwide Action Day Sustainable Washing/Dishwashing [Bundesweiter Aktionstag Nachhaltiges (Ab-)Waschen] has been taking place on 10 May, under the patronage of various outstanding persons.