Saudi Arabia is a very conservative country with centuries-old attitudes and traditions, often derived from Arab tribal culture. This conservative tendency has been bolstered by the austerely puritanical Wahhabi form of Islam, which arose in the eighteenth century and now predominates in the country. The many limitations on behaviour and dress are strictly enforced both legally and socially. Alcoholic beverages are prohibited, for example, and there is no theatre or public exhibition of films. Public expression of opinion about domestic political or social matters is discouraged. There are no organizations such as political parties or labour unions to provide public forums.
Daily life is dominated by Islamic observance. Five times each day, Muslims are called to prayer from the minarets of mosques scattered throughout the country. Because Friday is the holiest day for Muslims, the weekend begins on Thursday. In accordance with Wahhabi doctrine, only two religious holidays are publicly recognized, øƒ™d al-Fi·π≠r and øƒ™d al-A·∏ç·∏•ā. Celebration of other Islamic holidays, such as the Prophets birthday and øƒÄshūrā æ, are tolerated only when celebrated locally and on a small scale. Public observance of non-Islamic religious holidays is prohibited, with the exception of September 23, which commemorates the unification of the kingdom.