The document discusses the political systems and governments that existed in the Philippines prior to Spanish colonization. It describes 4 categories of societal structures: 1) Classless societies with no social hierarchy; 2) Warrior societies led by warrior chiefs; 3) Petty plutocracies ruled by a landowning class; and 4) Principalities with a ruling noble class like the Muslim sultanates of Sulu and Maguindanao. The basic political unit was the barangay, a community led by a datu who had executive, legislative, and judicial powers. Social classes included nobles, warriors, freemen, and slaves.