For the first time the Judaica Research Center of the National Library of Lithuania participated in the annual program of the European Day of Jewish Culture. This year’s focus was on Jewish diaspora and its heritage. On September 4-5, an international conference “How to Commemorate the Great Synagogue of Vilna Site?” was organized by the NGO “Jerusalem of the North” in cooperation with the National Library of Lithuania. On September 4, the Judaica Research Center invited to a concert “History of Jewish Music” performed by the “Klezmer Klangen” ensemble. Lithuania and Vilnius in particular, have been one of the most historically important Jewish diaspora centers.