This evening marks the start of the Festival of the Sacrifice (عید الاضحى/Eid al-Adha in Arabic and عید قربان/Eid-i Qurbān in Persian), celebrated every year by Muslims at the end of the Hajj. عید مبارک, and if you’re interested in learning more, you might want to start with this blog’s first عید قربان post from two years ago.