Chaim Weizmann institute was a global success attracting scientists from all over the Diaspora. In 1949 there were 20 researchers, twenty years later there were 400 and 500 students. The Honourable Chaim Weizmann met with United States President Harry Truman and worked to obtain the support of the United States, they discussed emigration, for the establishment of the State of Israel. The President lived at Rehovot, where he regularly received the Prime Minister David Ben-Gurion into his garden. He was denied any actualisation of the political role he had hoped for by the Left. He had to be consoled with the Weizmann
History of the Israeli–Palestinian conflict defeating the Ottoman Turkish forces and occupied the Palestine region. The land remained under British military administration for the remainder of the war. On January 3, 1919, future president of the World Zionist Organization Chaim Weizmann and the future King Faisal I of Iraq signed the Faisal-Weizmann Agreement in which Faisal provisionally accepted the Balfour Declaration conditional on the fulfillment of British wartime promises of Palestine being included in the area of Arab independence. At the 1919 Paris Peace Conference and Treaty of Versailles, Turkey's loss of its Middle East Empire was formalized. After World War I and the collapse