Muslims adhere to the Five Pillars of Islam, with the fifth pillar concluding in a Muslim undertaking a pilgrimage to Makkah. This pilgrimage is called Hajj. Before reaching Makkah all pilgrims must wash and put on special clothes called “Ihram”. All Muslims undertake this pilgrimage at least once in their lifetime. Men who have taken this important pilgrimage are referred to as Hajji while women are called Hajja. The Hajj takes place in the month of Dhul-Hijjah the twelfth month of the Islamic calendar.