I did connect helix with dna. but thought that the answer was something else.
so googled around for the second answer... and I found Lorreto Chapel. which might have been completed in
1872 OR
1878.
I think that's the answer, but I'll triple check just to be sure. yea. I think it's that.
Bingo! Weird, eh?
In 1878 a dude presents the DNA double-helix and another dude builds a helix spiral stairway [to heaven]. I'm pretty sure I'm the first to connect these dots, but please correct me if I'm mistaken.
https://en.wikipedia.org/wiki/Albrecht_Kossel#Nobel_prizeThe processes of life are like a drama, and I am studying the actors, not the plot. There are many actors, and it is their characters which make this drama. I seek to understand their habits, their peculiarities.
—Albrecht Kossel, New York Times interview