What is the First Piece of Technology Invented by Humans

Possibly:

Beds.

In Border Cave, which was occupied over 200,000 years ago, we've found that they were making beds from a mixture of grass and ash. And the ash was clearly intentional (perhaps a deterrent for fleas or bed bugs?). Oh, and they also added camphor to it, which also repels insects.

Obviously, we couldn't use ash in our beds until we invented fire, but were we making simpler beds before then? Realizing camphor scared off bugs can't have been overnight.

But yeah.

Beds.

Possibly we were making them when we were still apes...