Tuesday Ecumenical Patriarch Vartholomaios conducts liturgy marking 800th anniversary of the sacking of Constantinople during the Fourth Crusade. Cardinal Philippe Barbarin, Archbishop of Lyon, who has said the sacking in 1204 was a «disgrace» for the Catholic Church, will attend the service in Istanbul and will speak. Wednesday AKEL, the Greek-Cypriot Communist party, to decide at a national congress whether to accept UN Secretary-General Kofi Annan’s plan for Cyprus’s reunification. The party leadership has called for a postponement of the April 24 referenda on both sides of the island. Neo Iraklion station on the Piraeus-Kifissia electric railway reopens after renovation work. It has been closed since June. Also, the Victoria Square station platform for Piraeus-bound passengers reopens while that for Kifissia-bound trains will close. Education Ministry to announce program of examinations for senior high school students. 3rd Historical Acropolis Rally begins at Acropolis at 6 p.m. To Sunday. Thursday President Costis Stephanopoulos to chair meeting of leaders of political parties represented in Parliament. They are to discuss the Annan plan and their position on the April 24 referenda on Cyprus. European Commission organizes Cyprus donors’ conference. Cyprus’s center-right Democratic Rally to decide at national congress whether to accept the Annan plan. Agriculture Minister Savvas Tsitouridis to meet with European Commissioner for Agriculture Franz Fischler in Brussels. General Confederation of Greek Labor (GSEE) resumes talks with employers over national collective labor agreement. Trial of five Revolutionary Popular Struggle (ELA) resumes after Easter holiday break. The Aristotle University of Thessaloniki organizes the 5th International Symposium on Eastern Mediterranean Geology. Among the topics: Water management in the Middle East, earthquakes and their consequences, and other natural disasters. At the university. To April 20. Tel. 2310.998.494. Friday Deadline for Greek and Turkish Cypriots to provide UN with details regarding organization and personnel of federal state. Saturday «Thessalia 2004» trade fair opens at Larissa exhibition center. To April 25. Tel. 2410.539.175. Sunday Deadline for Greek and Turkish Cypriots to hand over to UN buildings that will be used by services of the new federal state.