This document provides information about the origins and ethnic groups of Filipinos. It discusses how the Philippines was populated in waves of migration, including the first Negrito groups 40,000-50,000 years ago, the Manobo people 15,000 years ago, and the Sama and Cordilleran groups around 7,000-12,000 years ago. Small amounts of genetic ancestry from Papuan, Indian, and European peoples are also observed in some ethnic groups from 2,500, 500-1,000, and 150-450 years ago respectively. The document emphasizes that Filipinos have a diverse multi-cultural heritage and genetic history from interactions between distinct populations over time.