Stone and Bone: The basic bits of carpentry and joinery

Yer ol carpenter has a treat: Here's a gay-ron-teed Joiners and Carpenters NERDGASM. I LOVE stuff like this.
"Primitive" people aren't intellectually less competent than civilized ones. They just haven't had the need or the occasion to think THOSE thoughts.  That's why there are no "superior" or "inferior" languages--or morality systems, either. They all do only and exactly what the people who usae them need them to do.
The take-away, for me  --the ex-journeyman ClassA spike spitter: Basically, all the cuts, joints, channels, mortices, and the other tricks of wood-working were already in use 7, 8, mebbe 10 THOUSAND years ago. Done with stone-and-bone, alone; and intuition gained from experience, of course.
I could go on...
I won't....
Enjoy!