Scientist Leopold Infeld, mathematician Stanislaw Ulam or professor Adam Ulam contributed to the world of science. Others are Moses Schorr, Georges Charpak, Samuel Eilenberg, Emanuel Ringelblum just to name a few from the long list of Polish Jews who are known internationally. The term genocide was coined by Raphael Lemkin (1900–1959), a Polish-Jewish legal scholar. Leonid Hurwicz was awarded the 2007 Nobel Prize in Economics. The Main Judaic Library and the Institute of Judaic Studies were located in Warsaw, religious centers had at their disposal Talmudic Schools (Jeszybots), as well as synagogues, many of which were architecturally outstanding. Yiddish theatre also flourished; Poland had fifteen Yiddish theatres and theatrical groups. Warsaw was home to the most important Yiddish theater troupe of the time, the Vilna Troupe, which staged the first performance of "The Dybbuk" in 1920 at the Elyseum Theatre. Some future Israeli leaders studied at University of Warsaw—Menachem Begin and Yitzhak Shamir, among others. The influence of Polish and Jewish cultures was reciprocal. Jewish chess players such as Akiba Rubinstein were ranked among the best, and they contributed to the Polish world championship in 1930. Many Yiddish-language films were produced in Poland, including "Yidl Mitn Fidl" (1936), "The Dybbuk" (1937), "Der Purimszpiler" (1937), and "Mamele" (1938). In 1937, the Polish-Jewish community was served by 150 Yiddish-language newspapers and journals (with a combined circulation of 600,000) and a number of Polish-language newspapers (circulation 180,000).