Puritanical Saudi Islamic sect founded by Muhammad ibn-Abd-al-Wahab (17031792), which regards all other sects as heretical. By the early 20th century it had spread throughout the Arabian peninsula; it still remains the official ideology of the Saudi Arabian kingdom.
The top left trigram symbolizes summer, south, and heaven. The top right trigram represents autumn, west, and the moon. The bottom right trigram stands for winter, north, and the Earth. The bottom left trigram represents spring, east, and the sun. Effective date: 21 February 1984.