Chaim Weizmann Builder of a Nation Author:Rachel Baker Biography of Chaim Azriel Weizmann (27 November 1874 – 9 November 1952) a Zionist leader, President of the World Zionist Organization, and the first President of the State of Israel. He was elected on 1 February 1949, and served until his death in 1952. Weizmann was also a chemist who developed the ABE-process which produces acetone throug... more »h bacterial fermentation. He founded the Weizmann Institute of Science in Rehovot, Israel.« less