A fact from Chief Commission for the Prosecution of Crimes against the Polish Nation appeared on Wikipedia's Main Page in the Did you know column on 3 August 2019 (check views). The text of the entry was as follows:
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Piotrus The sentence it was created in the aftermath of World War II to investigate Nazi crimes against the Polish nation. in the Naming section needs a source for DYK, I think -- there are three sources at the end of the following sentence, but they're either in Polish or unavailable to me so I can't figure out which one (or all three) support this, as I expect, but didn't want to guess! --valereee (talk) 18:06, 1 August 2019 (UTC)[reply]
nm, I managed to get through the translation of source 1, and I think it states this. You might want to check my work! --valereee (talk) 19:58, 1 August 2019 (UTC)[reply]