A forgotten fact about Auschwitz: most of its first prisoners were Catholics. https://www.outono.net/elentir/2021/06/14/a-forgotten-fact-about-auschwitz-most-of-its-first-prisoners-were-catholics/ On June 14, 1940, 85 years ago, the first 728 prisoners arrived at the Auschwitz concentration camp. All of them were Polish men.