Holocaust Horrors Revealed: Database Exposes Nazi Experiments on Jews
German researchers have launched a comprehensive online database documenting thousands of victims subjected to Nazi medical experiments during the Holocaust, revealing the extent of these atrocities. The archive, which includes survivor testimonies and an interactive map, aims to preserve victims’ stories and reinforce ethical principles in science.

A groundbreaking online database, the result of a seven-year investigation by the Max Planck Society and the German National Academy of Sciences, has been released, shedding light on the horrific medical experiments conducted by Nazi scientists during the Holocaust. This unprecedented archive documents thousands of victims who were dehumanized, reduced to mere numbers and case files in the name of pseudoscientific research. The database not only catalogs the atrocities but also serves as a somber reminder of the ethical failures of science under sick Nazi ideology.
Among the chilling accounts are the experiments conducted by SS physician Josef Mengele at Auschwitz. Survivors’ testimonies, submitted to the Conference on Jewish Material Claims Against Germany, describe being subjected to extreme temperature tests and chemical injections. One survivor recounted being submerged in scalding water daily, with Mengele using a stick to force them back underwater when they struggled to breathe. These accounts reveal the depths of cruelty inflicted on victims, many of whom suffered lifelong injuries or death, approximately 25% of documented cases resulted in fatalities.
The database extends beyond concentration camps, exposing victims of the Nazi euthanasia programs. Disturbingly, brain specimens from these victims were found circulating in German research institutions for decades post-war. In 2015, around 100 brain sections from the Hallervorden collection were rediscovered in Berlin-Dahlem, with some specimens still in collections today, according to Professor Paul Weindling of Oxford Brookes University, who led the research.
An interactive map details the geographic scope of these experiments across Nazi-controlled territories, identifying 15,754 victims, a fraction of the estimated total. The database allows families to search for missing relatives and provides public access to victims’ names and stories, fostering remembrance and accountability. “History shows us what human beings are capable of when an autocratic state rejects an established humanitarian value system in favour of racist ideology and fanaticism,” said Patrick Cramer, President of the Max Planck Society. “Science must recommit itself to ethical principles; today’s highly specialized research must not lose sight of the human dimension.”
This initiative underscores the importance of confronting historical atrocities to ensure ethical standards in modern science. By preserving victims’ stories, the database honours their memory and serves as a warning against the dangers of unchecked ideology especially amidst the growing rate of anti-Semitic incidents and the concerning incitement for violence against Jews.