For those who care, I'm that French guy in the Baron Trump's Marvelous Underground Adventures threads who spoke about The Coming Race, Marie-Julie Jahenny, the Great Monarch and a few other things.
The threads are here :
Pt. 1: deleted
Pt. 2: →
Pt. 3: →
Pt. 4: →
Pt. 5: →
Pt. 6: →
And the books are here :
Baron Trump's marvellous underground journey (Ingersoll Lockwood, 1893): archive.org
1900; or, The last President (Ingersoll Lockwood, 1896) : archive.org
The Coming Race (Edward Bulwer-Lytton, 1871) : gasl.org
There's some meme magic mining to do with these books. Pic is an excerpt of The Coming Race.
I won't say a lot about Lockwood's books, because other anons already did the job about this.
My point is that France (and French popular culture, as you'll see) seems to be linked to the Trump/Kek/Happening meme magic. Or perhaps it's just a bias : as a french, it's easier for me to notice coincidences in my culture than in another. Check about your own country, that's all I can say.