+629+. Doubtless also among lower tribes intercourse with higher communities has had the same result. One of the most remarkable episodes in the history of taboo is its complete overthrow in the Hawaiian Islands in the year 1819 by a popular movement.[1047] The movement was begun by members of the royal family, particularly by one of the queens, and was eagerly followed by almost the whole population--the result was the final overthrow of the system. This was before the arrival of Christian missionaries; but as foreigners had visited the islands many years before (Captain Cook first came in 1778), it is possible that the suggestion of the reform came from observation of the fact that the taboos were disregarded by those men without evil effects. In any case it was the acceptance of better ideas by the people that led to the revolutionary movement. +630+. _Rôle of taboo in the history of religion._ The relation of taboo to morality and religion and to the general organization of society appears from the facts stated above. It has created neither the sense of obligation nor the determination of what is right or wrong in conduct. The sense of obligation is coeval with human society--man, at the moment when he became man, was already potentially a moral being (and a religious being as well).[1048] His experience of life induced rules of conduct, and these, with the concurrence of some hardly definable instincts, became imperative for him--the conception involved in the word 'ought' gradually took shape. The practical content of the conception was determined by all sorts of experience; the decisive consideration was whether or not a given thing was advantageous. The belief arose that certain disadvantageous things were to be referred to extrahuman influences, and such things were of course to be avoided--this belief produced the taboo system. +631+. The prohibitions of morality sprang from social relations with human beings, the prohibitions of taboo from social relations with superhuman beings--duties to both classes of beings were defined by experience. The rule "thou shalt not kill thy clansman" was a necessity of human society; the rule "thou shalt not touch a corpse" sprang from the fear of a superhuman, malign, death-dealing Power. Avoidance of poisonous herbs was an obligation founded on common experience; avoidance of a chief's food and certain other foods arose from dread of offending a spirit or some occult Power. And so with all taboo prescriptions as contrasted with others relating to conduct.[1049]