Pilgrimage to Mecca (Arabic Makkah), in Saudi Arabia, that should be undertaken by every Muslim at least once in a lifetime, unless he or she is prevented by financial or health difficulties. A Muslim who has been on hajj may take the additional name Hajji. Many of the pilgrims on hajj also visit Medina, where the prophet Muhammad is buried.
Green, yellow, and red are the pan-African colours. The flag is modelled on the French tricolour. The design was identical to the Rwandan tricolour, obliging that country to modify its flag. Effective date: 1 March 1961.