Original sentence: Foremost is the evidence that the Nazi regime had a program at the Danzig Anatomic Institute in 1944 to develop a process for the mass-production of soap from the fat of Jews being slaughtered in Nazi extermination camps.The scholars fear that without proof beyond the eye-witness testimony, the story of the manufacture of soap from human bodies will become ammunition in the hands of Holocaust deniers.Three characters representing historians of the Holocaust argue strongly that although  a large number of eye-witnesses including  former British POW's, Nazis, and Holocaust survivors have testified about the soap production, because no actual laboratory or production  records survive as physical documents, the production of soap is used by Holocaust deniers to discredit the reality of the Holocaust itself and that, therefore, no assertions that any soap production took place should be published
Edited sentence: Foremost among the historical inspirations is the evidence that the Nazi regime had a program at the Danzig Anatomic Institute in 1944 to develop a process for the mass-production of soap from the fat of Jews being slaughtered in Nazi extermination camps, and produced soap in small quantities at a nearby concentration camp.The scholars in the play fear that without proof beyond the eye-witness testimony, the story of the manufacture of soap from human bodies will become ammunition in the hands of Holocaust deniers.Three characters representing historians of the Holocaust argue strongly that although  a large number of eye-witnesses including  former British POW's, Nazis, and Holocaust survivors have testified about the soap production, because no actual laboratory or production  records survive as physical documents, any publication about the production of soap will be used by Holocaust deniers to discredit the reality of the Holocaust itself and, therefore, that no assertions that any soap production took place should be published