Much light is thrown upon the relations of the Spaniards with the Filipinos, and upon the native character, by the accounts (some of them almost contemporary) here presented of insurrections by Filipinos in the seventeenth century. These occur in northern Luzón (1621, 1625, 1629, 1639), Bohol and Leyte (1622), Mindanao (1629, 1650), Pampanga (1645, 1660) and Pangasinán (1661) in Luzón, the Visayan Islands (1649-50), Otón in Panay (1663, 1672), and among the Zambals (1661, 1681, 1683). Accounts of these are here translated from early chronicles, their writers representing the various religious orders; and are arranged chronologically. These revolts are caused partly by Spanish oppression, but even more by the influence of certain chiefs who desire to restore the old worship of idols, and who appeal to the superstitious, credulous, and fickle natures of their followers. They are, in each case, sooner or later quelled by the Spaniards, thanks to their bravery and their possession of firearms; and severe punishments are inflicted on the ringleaders, thus restraining further attempts to throw off the Spanish yoke. The rebellion of 1649-50 is so general that the Spaniards are obliged to call in the aid of the Lutaos of southern Mindanao, themselves enemies and pirates not many years before; but they willingly go to attack their ancient enemies the Visayans. In several of these insurrections, great dangers are averted by the influence that the missionaries have acquired over the natives, and they sometimes are able even to prevent rebellions; they often risk their lives in thus going among the insurgents, Nevertheless, the first fury of the insurgents is directed against the churches, and sometimes against the missionaries as well as the other Spaniards; they kill some friars, burn the convents and churches, and profane the images. Diaz ascribes this to the shrewd scheming of the ringleaders to involve the crowd in general guilt, and thus secure the adherence and more desperate resistance of their followers. One of the insurrections is led by a scheming priest of idols who persuades the natives that he is God; and certain of his associates personate Christ, the Holy Spirit, and the Virgin Mary--only to receive heavier punishment when their rebellion is overthrown. The policy of the Spaniards toward the natives is plainly shown in these accounts, and often reminds the reader of that pursued by the French with the North American tribes, and by the English with the natives of India.