Let's have a thread on radio history /his/. No I don't mean the timeline of the technology, but recordings of world events.
http://radio.garden/history/
Some neat stuff there, you can also get live stations from around the world as an aside
https://archive.org/details/CbsNewsRoundup-PearlHarborAttacked
25 minute broadcast on the opening Japanese moves in WW2
https://shortwavearchive.com/archive?category=Radio+History
https://archive.org/details/AdolfHitler09-05-1934
https://archive.org/details/AdolfHitler1933Volksvergiftung
https://archive.org/details/AdolfHitler1933Reichstag
https://archive.org/details/AdolfHitler20-02-1933
some angry hitlers
https://archive.org/details/WartimeRadio1944-1
22 hours of CBS News on June 6 1944
https://archive.org/details/1930-1937RadioNews/1924-09-12+WLAG+National+Defense+Day.mp3
an entire playlist of miscellaneous history just for you
https://archive.org/details/the_war_of_the_worlds_ORdelcroix
Orson Welles' infamous war of the worlds radio broadcast
https://archive.org/details/1940RadioNews/1940-06-18-BBC-Churchill-Finest-Hour-Speech.mp3
some more WW2 stuff in a playlist
https://archive.org/details/MartinLutherKing-BeyondVietnam-1967
https://shortwavearchive.com/?category=News
also some neat stuff here