History of the Jews in Poland Polish Jews who gained international recognition are Moses Schorr, Ludwik Zamenhof (the creator of Esperanto), Georges Charpak, Samuel Eilenberg, Emanuel Ringelblum, and Artur Rubinstein, just to name a few from the long list. The term "genocide" was coined by Rafał Lemkin (1900–1959), a Polish-Jewish legal scholar. Leonid Hurwicz was awarded the 2007 Nobel Prize in Economics. The YIVO (Jidiszer Wissenszaftlecher Institute) Scientific Institute was based in Wilno before transferring to New York during the war. In Warsaw, important centers of Judaic scholarship, such the Main Judaic Library and the Institute of Judaic Studies were located, along with numerous Talmudic Schools
Ludwik Kalkstein Ludwik Kalkstein Ludwik "Hanka" Kalkstein, also known as Ludwik Kalkstein-Stoliński, (13 March 1920, Warsaw – 26 October 1994, Munich); was one of the better known German Gestapo agents during the Warsaw Uprising as well as a Stalinist informant following the Soviet takeover of Poland. Along with his wife (Blanka Kaczorowska "Sroka"), they became traitors to the Armia Krajowa under not just one but two consecutive totalitarian regimes. Kalkstein was responsible for the arrest and execution by the Nazis of at least fourteen Polish underground officers, including the General Stefan Rowecki. Arrested by the Gestapo in April 1942 and interrogated, Kalkstein