See title. I'm curious to know when the first mentions of the holocaust were. I've seen some things to suggest they were long after WWII, and it took until the 70s for it to appear in encyclopedias and dictionaries. However on the contrary we have books like If This Is a Man by Primo Levi which was published in October 1947, only two years after he left Auschwitz, and published a few months earlier was Diary of a Young Girl in June of 1947. Are there any earlier? News reports, survivor accounts, whatnot?
But in the context of WWII it was the mid 1970s when a jew larped as a NSDAP enthusiast and got the jew run ACLU to sue SKokie, IL, to force them to permit a march of other subversive jews and some useful idiots. Soon after there was a made for TV miniseries which spread the lie to the masses because they knew jew loving TV viewers wouldn't do any research to verify the claims made by the magic moving picture box.
Multiple books written about WWII by the leaders of the Allied powers - Hurchill, Patton, De Gaulle - not a single mention of a so-called holocaust. Enigma encryption had been cracked and not a single message transmitted regarding it. Nothing. No documentation whatsoever.