+603+. In general, sacred seasons, times of great communal ceremonies, demand the avoidance of ordinary pursuits, which, it is feared, may imperil the success of the ceremonies by necessitating contact with things infected or nonsacred. The earlier Hebrew usage recognized such seasons (new moon, sabbath, and perhaps others); the later usage increased the number of tabooed days as the ritual was expanded and organised.[977] For Greece we have the Plynteria, on the principal day of which work was suspended;[978] in Rome the feriae were such days, regular or occasional.[979] The inbringing of first fruits was a peculiarly solemn occasion, when gratitude to the deity mingled with fear of hostile influences; so among the Hebrews[980] and at Athens[981] and in Tonga.[982] Polynesian restrictions on the occasion of ceremonies are given by Ellis.[983] All such days of abstinence from ordinary work tend to become holidays, times of popular amusement, and a taboo element may be suspected in such festivals as those of the later Hindu period.[984] Naturally, also, days of restriction become sacred to deities. +604+. Great nonreligious tribal events and peculiar situations demand restrictive precautions. Warriors prepare for an expedition by remaining apart from their wives.[985] Women whose husbands are absent are sometimes immured or forbidden all intercourse with human beings; by reason of the identity of husband and wife supernatural harm to the latter will affect the former. Afflictive occurrences, such as famines, pestilences, earthquakes, are signs of some hostile supernatural power, defense against which requires the avoidance of ordinary pursuits. Arbitrary enactments by chiefs may attach restrictions to a particular day. Sometimes restrictive usages, of obscure origin, become communal law. Thus, every Toda clan has certain days of the week (not the occasion of special ceremonies) in which it is forbidden to follow ordinary occupations; among the things forbidden are the giving of feasts, the performance of funeral ceremonies, the cutting of nails, and shaving; women and dairymen may not leave the village, and the people and buffaloes may not move from one place to another.[986] Doubtless this system of prohibitions is the outcome of many generations of experience--the organization of various local usages.