Dating all the way back to Neolithic times, the mortise and tenon is the oldest wood joint known to mankind. While the specific provenance of the joint is unknown, I'm willing to bet the inventor wasn't a virgin. NSFWIn the thousands of years since, craft
I have some quibbles with this chart! No way is Cocobolo (Rosewood) softer than S. American Mahogany, Zebrawood and Padauk,. The Peruvian Walnut I use is softer than Teak, Walnut, Cherry, soft Maples, Imbuia, etc.