Back then, there was no TV, no radio, no comic books. All the people could do for entertainment was build dirt mounds. Makes sense to me.
Digging tunnels in the back yard was
My first real talent...
It’s in the DNA.
I read Michener’s book “The Tell” (iirc) years ago, about the Israeli hilltop cities built on top of previous cities. I think most of the previous towns were destroyed in battles, but perhaps natural and manmade disasters too. Then they would start all over again. I’m guessing a lot of history in the mound down through the ages.
They found some 11,000 year old tools and stuff along a creek in my town. No mounds though, and no long history. Just the 11,000 year old tools and bones, 5 to 10 feet below some old Rainier Beer cans.