Is this the world's oldest, simplest chair design?

It's been called a Camping Chair, a Bog Chair, an X-Chair, a Stargazer Chair, a Viking Chair, an African Chair, but "no one can agree on where the design first came from or what it ought be called," says Rain Noe. In her article for Core 77 she looks at the many variations of this simple flat pack chair.

Steve Ramsey shows how to make one:https://youtu.be/nQ0MaAJgLxo