Brazil blocked its doors to an influx of Jewish refugees from Europe during the Holocaust.[20] Research by Brazil's Virtual Archives on Holocaust and Antisemitism Institute (Arqshoah) has uncovered that between 1937 and 1950 more than 16,000 visas to European Jews attempting to escape the Nazis were denied by the governments of presidents Getulio Vargas and Eurico Gaspar Dutra.[21]