Not to worry about code. Google ancient Chinese pottery discovery, plenty of different
source links.
What was their civilization like 18 K years ago ? Must have been really basic.
Immagine what the very first discoverer of a lump of clay might have made out of it. It probably was not an amphora and tea cups had not been invented yet.
First creations might have been like a kid's today, receiving a pack of silly putty
for a christmas present !