Episode notes
I read from flatbed to flatlet.
Here are some (relatively) easy ways you can prove to yourself that the earth is a sphere.
https://www.popsci.com/10-ways-you-can-prove-earth-is-round/
Here are two groups of Native Americans that are also called "Flathead(s)", plus a link to the practice of head flattening.
The Bitterroot Salish "...deny that their ancestors engaged in this practice. Instead, they believe that this name caught on because of the sign language which was used to identify their people: Pressing both sides of the head with your hands which meant "we the people".