Dhul Hijjah is the 12th and final month of the Islamic (Hijri) calendar and one of the holiest periods in the Islamic year because it plays host to two of the most significant pillars and celebrations in Islam:
The Hajj pilgrimage
The festival of Eid al-Adha

Main Characteristics
Sacred Status:
It is one of the four “Sacred Months” (Al-Ashhur al-Hurum) in Islam during which fighting and warfare are strictly forbidden.
The Blessed First Ten Days:
The first ten days are considered the most spiritually potent days of the entire year, even surpassing the days of Ramadan in merit for general good deeds.
Global Unity:
Millions of Muslims from across the world together in identical attire to perform the Hajj.
Meaning and Origin
“The Month of the Pilgrimage.”
The name predates Islam. The Arabian tribes recognized this specific month as a time of sacred truce and perform pilgrimage, Islam later preserved the sacred status of this month.
Historical Events
• The core ritual of Qurbani (sacrifice) on Eid al-Adha
• The Farewell Pilgrimage and the Farewell Sermon by Prophet Muhammad ‎ﷺ .
• The Completion of Islam
• The Pledge of Aqabah