 In July 1946, Boder arrived in Paris and spent the next nine weeks conducting 130 interviews in 16 locations across France, Germany, Switzerland and Italy.By this time, Boder spoke over seven languages, allowing him to conduct interviews in the subjects' native tongue.Most of the subjects were Eastern European Jews, primarily from Poland, but Boder also spoke with Western European Jews, non-observant German Jews, Greek Jews and non-Jews.