Again a couple ways to go.
I could comment on these strange days, but I have other social media outlets for that.
I am going to comment on the #RPGaDAY2020 list itself in that these are a lot of strange words.
Ok, I get it, Dave has been doing this a long time and maybe he is running out of words to use. but knowing and the work he has done in the past I highly doubt he is lacking in ideas. So I'll just put this here as my commentary and that's it.
Ok. Strange. Let's get to the meat of this.
Many of my contemporaries will point to Fritz Leiber, Robert E. Howard, Edgar Rice Burroughs, Tolkien, Moorcock, and Lovecraft as their main sources of inspiration to D&D. While I share the Tolkien, Moorcock, and Lovecraft influences, I also add Clark Ashton Smith.
But those were not my only sources.
Dr. Strange and Tomb of Dracula
The 1970s were a strange time to be sure. The 70s Occult Revival fueled my tastes in games in ways I never knew at the time and only saw in retrospect. Case in point. Dr. Strange comics and Tomb of Dracula. Both were favorites of mine but when Strange, along with Blade, would battle Dracula? Yeah, THAT was an adventure. I wanted my games to have these epic world-changing battles that start small but then go on out to the cosmic scale. Strange didn't just defeat Dracula. He destroyed all vampires.
I was already a huge horror fan at this point and Hammer Horror in particular. So these comics sent me searching more and more strange ideas for my games. I think by 1982 I had read every book of occultism in my local public library. Creating a witch class was an inevitable conclusion at that point.
When the Ravenloft module was released it found a no more welcome home than mine.
I have mentioned this in greater detail here.
Strange Stories, Amazing Facts
They, like many people of their generation, had a lot of Reader's Digest books. One, in particular, was Strange Stories, Amazing Facts.
This book should not by any stretch of the imagination be considered good literature or even good research. It is however good fun and a fun read.
While the book is divided up into roughly chronological sections including one on the future, it was the past and the monsters of myth that always grabbed my attention. Though flipping through it now that section on the end of the world would be fun to use.
For my birthday about 10 years ago my family found a copy and gave it to me. Complete with original dust jacket (I am book snob and prefer my dust covers intact).
I have been asked in the past to assemble my own "Appendix N". Maybe I'll do that one day.