The Ishango Bone.
The grooves on the handle of this 20,000 year old tool have been theorized to indicate paleolithic knowledge of complex mathematical concepts, or it could just be for easier grip.
Either way its a work of genius.

The Ishango Bone.

The grooves on the handle of this 20,000 year old tool have been theorized to indicate paleolithic knowledge of complex mathematical concepts, or it could just be for easier grip.

Either way its a work of genius.