Where did the earliest settlers of Yap likely come from?

The earliest settlers of the high island of Yap appear to have arrived from the west, most likely originating from the Philippines or Indonesia.1

Archaeological evidence, including pottery and shell adzes dating to the 2nd century CE, supports this migration pattern and indicates a resemblance to artifacts discovered in the Mariana Islands. This settlement history is distinct from that of the eastern Caroline Islands, which were likely settled by migrants moving westward from the areas of Vanuatu and Fiji.1