Weizmann Institute of Science 1934 by Chaim Weizmann and his first team, among them Benjamin M. Bloch, as the Daniel Sieff Research Institute. Weizmann had offered the post of director to Nobel Prize laureate Fritz Haber, but took over the directorship himself after Haber's death en route to Palestine. Before he became President of the State of Israel in February 1949, Weizmann pursued his research in organic chemistry at its laboratories. The institute was renamed the Weizmann Institute of Science in his honor on November 2, 1949, in agreement with the Sieff family. WEIZAC, one of the world’s first electronic computers was locally built
Rehovot That year, Rehovot had a population of 3,193. The agricultural research station that opened in Rehovot in 1932 became the Department of Agriculture of the Hebrew University of Jerusalem. In 1933, a juice factory was built. In 1934, Chaim Weizmann established the Sieff Institute, which later became the Weizmann Institute of Science. In 1937, Weizmann built his home on the land purchased adjacent to the Sieff Institute. The house later served as the presidential residence after Weizmann became president in 1948. Weizmann and his wife are buried on the grounds of the institute. In 1945, Rehovot had a population of