Islamic Republican Party Office Bombing and Judiciary Day, Tir 7. On this date in 1981, a bombing at the central office of the Islamic Republican Party in Tehran resulted in the deaths of over 70 members and officials of the party. This event is regarded as one of the largest political attacks in contemporary Iranian history and had a significant impact on the country's political atmosphere. Following this incident, Tir 7 was designated as Judiciary Day. The decision to mark this day was made to commemorate the event and to highlight the role of the judiciary within Iran's political and legal system. Annual ceremonies and events are held to reflect on the incident and discuss the judiciary's position in society. The significance of this day continues to be recognized in Iran's modern political and legal history, serving as a reminder of a pivotal moment in the early 1980s. According to Islamic Republic sources, this observance is registered and presented in the official calendar in this form and with these descriptions.