The Fifth of Jamadi-Ul-Awal marks the birth anniversary of Hazrat Zainab (SA) who was the daughter of Hazrat Ali (AS), the first Shia imam, and granddaughter of Hazrat Muhammad (S).

She is celebrated by Muslims as having valiantly and successfully defended the life of the lone surviving male member of the family of Imam Hussein (AS), the fourth Shia Imam Zayn al-Abidin (AS), after the battle of Karbala.

This day is also called the Nurses Day in Iran to pay tribute to nurses for all their efforts.