October 4, 1943.
Heinrich Himmler's speech in secret meeting with SS officers in Poznan, Poland.
https://phdn.org/archives/holocaust-history.org/himmler-poznan/index.shtml
http://www.holocaustresearchproject.org/holoprelude/posen.html
https://holocaustcontroversies.blogspot.com/2008/08/himmlers-posen-speech.html
https://holocaustcontroversies.blogspot.com/2008/08/goebbels-slip-of-tongue-ausrott.html
I've made a map for Metroid on the NES and now I test it out by playing and using the map! It has some downsides but is pretty useful in general. Much better than not having a map at all!