Many thanks to SWLing Post contributor, Paul Jamet, who writes:

Tomorrow, April 25, 2024, will be the 150th anniversary of G. Marconi’s birth.

[…]I’ve just published an article on the Radio Club du Perche website in which I’ve included a few references to English-language sites : http://radioclub.perche.free.fr/?p=12658

The Poldhu Amateur Radio Club (UK) will be marking the event.

Finally, I’ve discovered a site which, since April 1, lists the amateur stations broadcasting on this occasion : https://www.150marconi.org/
Also :
https://www.dx-world.net/ii1gm-150th-anniversary-birth-of-marconi/

https://www.alfatango.org/index.php?option=com_content&view=article&id=343:wrd-imd&catid=70:special-events&Itemid=1303

Conferences are also being organized:
https://www.bolognawelcome.com/en/events/celebrations-anniversaries/150-anniversario-di-guglielmo-marconi-en

https://www.wirelessinnovation.org/marconi-anniversary-celebration

Here it is … Hope this helps … Best regards.

Thanks so much for sharing these resources, Paul!