 By 1200 BCE, they again began crossing open seas beyond inter-island visibility, reaching Vanuatu, Fiji, and New Caledonia; before continuing eastwards to become the ancestors of the Polynesian people.Further migrations by other Austronesians also followed, likely from Sulawesi, settling Palau and Yap by around 1000 BCE.The details of this colonization, however, are not very well known.