And of course, come to think of it, skateboards. Were those originally invented by nailing rollerskate trucks under a plank, or what? I'm fairly sure skateboar

And of course, come to think of it, skateboards. Were those originally invented by nailing rollerskate trucks under a plank, or what? I'm fairly sure skateboards use bigger -- certainly wider -- trucks nowadays, but rollerskates definitely predate at lest the "modern" (i.e. post-1970s) skateboard boom... Just a WAG.