Solid lines are descent: a proposal sits on the limb it actually comes from. Dotted lines are something else, and they are the reason this is a network and not just a tree. Tap a leaf to read it and walk it. Tap a motif below to light up where it recurs.
These traditions had no common ancestor and in most cases no contact. Each motif below turns up on limbs that do not meet, and two of them reach back out of the proposals into the accounts on the map itself.