Thursday The Hellenic Society for Social Pediatrics and Health Promotion is holding the 18th Panhellenic Congress titled «Child, Health and Culture.» To Saturday. The 20th International Exhibition for Information Technologies, Telecommunications and Digital Technology opens at HELEXPO in Thessaloniki. To Sunday. EURONEM New Effective Media holds a workshop titled «Europe and the Third World» at Technopolis, Gazi. The workshop is a project of the EU, the office of the European Parliament in Greece and UNICEF. Friday The 24th annual Spartathalon race, covering the 246 kilometers between Athens and Sparta, begins. The reenactment of the historic race, featuring athletes from all over the world, is being organized and funded by the Stavros Niarchos Foundation. To Saturday. The Department of Forestry and Management of the Environment and Natural Resources of Democritus University of Thrace holds an international conference on Naxos on «Sustainable Management and Development of Mountains and Island Areas.» To Sunday. The 1st International Congress on Pop Culture and Education is to be held in Volos. It is being organized by the Ministry of Education and the International Organization of Folk Art of UNESCO. To October 10. The Hellenic American Educational Foundation organizes an International Educational Conference on «The Prospects and Possibilities for Creating Learning Societies in an Age of Insecurity and Uncertainty.» To Sunday. Saturday The State Senior High School Teachers’ Federation (OLME) is to hold a general meeting in Athens. Sunday The Greek Association of Liver Transplant Patients is to announce its formation. Tel. 210.973.7342.