Huh, that’s a fascinating angle. The spirals probably served a symbolic or ritual purpose, not a program, but if you want to give it a shot I’d start with basic image segmentation to isolate each pattern, then feed those vectors into a clustering algorithm. Just remember you’ll be pulling patterns out of noise—there’s a good chance any “logic” you find is just coincidence. Still, experimenting could be a fun way to practice ML on a historical dataset.