My respected colleague Dr. Henry just returned from an expedition in the Sahara.
He was hoping to find evidence of a sophisticated ancient civilization, but had little success. However, his team did discover several small artifacts, all in the same area:
I wonder if these artifacts served any purpose. And if so, what?
If the Saharan civilization was as sophisticated as Dr. Henry believes, they must have developed very advanced mathematics.
There are exactly two different symbols. What can this mean?