Homo sapiens reached the region by around 45,000 years ago, having moved eastwards from the Indian subcontinent. Homo floresiensis also lived in the area up until 12,000 years ago, when they became extinct. Austronesian people, who form the majority of the modern population in Indonesia, Malaysia, Brunei, East Timor, and the Philippines, may have migrated to Southeast Asia from Taiwan. They arrived in Indonesia around 2000 BC,and as they spread through the archipelago, they often settled along coastal areas and confined indigenous peoples such as Negritos of the Philippines or Papuans of New Guinea to inland regions.
Who arrived in Indinesia around the 2nd century BC? (If the question is unanswerable, say "unanswerable")
unanswerable