Sunday, February 24 A LECTURE in Hebrew on "Herodium: Summer palace, memorial site or burial place for the king?" will be delivered by Prof. Ehud Netzer of the Institute of Archaeology at the Hebrew University of Jerusalem at 5 p.m. in Wise Auditorium, Edmond J. Safra campus, Givat Ram. This one of the "Why?" series of lectures and musical programs sponsored by the Hebrew University Authority for Community and Youth. Admission is free. For more information call (02) 658-6256. THE ANNUAL "Elitzur" memorial lecture will be held at 6 p.m. at the Menachem Begin Heritage Center. "Elitzur," was the nom de guerre of Yitzhak Friedman, a young Irgun officer who participated in many of the major Irgun operations until the end of the struggle against the British. This year's "Elitzur" tribute combines with another story of great heroism in the 20th century, marking 40 years the beginning of the global struggle for Soviet Jewry. One of the young refuseniks, Yuli Edelstein, who is now an MK, will speak in English of his experiences and the general struggle. In addition, a short movie will be screened. Monday, February 25 THE JERUSALEM Center for Public Affairs will host the annual memorial lecture for its founder, Prof. Daniel J. Elazar, at the Dan Panorama Hotel in Jerusalem at 7 p.m. Guest speaker will be Prof. Samuel Heilman of the City University of New York and HU. His topic is "Sliding to the Right: The Contest for the Future of American Jewish Orthodoxy." AN ENGLISH-language Arnolph M. Pines Memorial Lecture will be delivered by Prof. Arnie Leitman of Toronto University, who will attempt to answer the question, "Whatever happened to the welfare state?" The lecture will be held at 4 p.m. in the Maiersdorf Faculty Club, HU's Mount Scopus campus, under the auspices of the Paul Baerwald School of Social Work and Social Welfare. For more information call (02) 588-1477 Tuesday, February 26 Teenage members of Young Israel Entrepreneurs are being guided while still in school in management and development techniques for success in running a company. Some 150 of them will meet at 8.30 a.m. at the Beersheba campus of the Sammy Shamoun Academic Engineering College for lectures and workshops with successful business people. For more information call Sigal Yaron-Fast at (08) 927-8533 or (052) 505-1000. ENVIRONMENTAL AFFAIRS Minister Gideon Ezra will be the guest of honor at a reception hosted by the Israel-Australia Chamber of Commerce at 6.30 p.m. in Tel Aviv at Bank Hapoalim, 11 Hanegev Street. Also participating in the event will be Australian Ambassador James Larsen. The entry fee is NIS 80 for members and NIS 100 for non-members. For more information call Paul Israel at (03) 516-8931 WHY IS there a renewed feeling of vulnerability and crisis among Latin American Jews? and How have the Cold War, 9/11, the Arab-Israeli conflict and globalization impacted on Latin America's Jewish communities? are among the topics to be discussed during a three-day international conference, "Latin American Jewry in a Changing Context: 1967-2007," at HU's Mount Scopus campus. Wednesday, February 27 FORMER PRESIDENT of India Dr. Abdul Kalam will be among the hundreds of scientists, aviation and aerospace executives, specialists and academics participating in the 48th Conference on Aviation and Space. It opens at the Dan Panorama Hotel in Tel Aviv and continues at the Haifa Technion. For more information call Amos Levav at (052) 452-4873. Thursday, February 28 OLIVE OIL is a staple not only in Israel but throughout the whole of the Mediterranean. But there's much more to olive oil than adding flavor to your salad. The olive oil industry, including the machinery, the types of olives and the processing, will be discussed at a conference on olive oil at Ben-Gurion University of the Negev in Beersheba, from 9.30 a.m. to 3.30 p.m. For more information call Prof. Zev Weisman at (08) 647-7184. Friday February 29 GUEST SPEAKER at the Begin Heritage Center launching of Shmuel Katz's new book, The Aaronsohn Saga, published by Gefen Publishers will be Sir Martin Gilbert, the official biographer of Winston Churchill. The event begins at 11 a.m. In his recent book, Churchill and the Jews, Gilbert describes meetings of Ze'ev Jabotinsky and Churchill, whose positive response to Jabotinsky's appeal to oppose the 1937 Partition Plan was a major political event at the time.