The foundations of modern Israel writing were laid by a group of literary pioneers from the Second Aliyah including Shmuel Yosef Agnon, the only Nobel Prize winner for literature in Hebrew and the only one for Israeli literature, Moshe Smilansky, Yosef Haim Brenner, David Shimoni, and Jacob Fichman. Until World War I, Hebrew literature was centered in Eastern Europe. After the war and the Russian Revolution many Hebrew writers found their way to Palestine, so that at the time Palestinian writing was essentially a continuation of the European tradition. In 1921, 70 writers met in Tel Aviv and founded the Hebrew Writers' Association. About this time the first literary periodicals made their appearance—"Ha-Adamah", edited by Brenner, and "Ma'abarot", edited by Fichman. The 1920 and 1930s witnessed the emergence of Palestine as the dominant center of Hebrew literary activity. Many of the pioneers of Hebrew literature were Zionists, and eventually made their way to Palestine. The great figures of the early part of the century—Bialik, Ahad Ha-Am, Tchernichovsky—all spent their last years in Tel Aviv, and although this was not the period of their greatest creativity, they exerted a great influence on younger Hebrew writers.