From 21 to 23 June 2014 University of Warsaw hosted the Fifth Congress of Polish Studies organized by The Polish Institute of Arts and Sciences in America (PIASA). PIASA was established in 1942 and since then maintains a center of learning and culture devoted to the advancement of knowledge about Poland and Polish Americans in the United States. In the words of Zbigniew Brzezinski, a member of PIASA, 'The Institute is a vital link between the Polish American community as well as America and the newly independent Poland. As such it enriches the intellectual life of both America and Poland through interchange of thought, exchanges of scholars, and systematic research and another form of academic creativity.'

The Warsaw Congress was the first Congress of PIASA organized in Poland (14 years ago an Annual Meeting of PIASA – a much smaller event - was held in Krakow). The Congress was attended by more than 200 scientists from the United States, Poland and 11 European and non-European countries. The opening session was devoted to the memory of Jan Karski, Polish resistance hero who reported the mass extermination of Jews during the Second World War to the Western Allies and after the war served as professor of Georgtown University. The 48 sessions were devoted to Polish-American history, literature, economy, sociology and sciences.

The Congress was a major event in the Polish-American scientific relations. The Institute of National Remembrance is one of the co-organizers of the Congress.