Which event is associated with compilation of Hadith during Umayyad period?

Hadith, the sayings and actions of Prophet Muhammad, are crucial for Islamic law. Their systematic compilation was a significant historical process. The event most notably associated with the compilation of Hadith during the Umayyad period was the Collection under Caliph Umar II. Around 717-720 CE, Caliph Umar ibn Abd al-Aziz, recognizing the potential loss of Hadith knowledge, issued an official directive to prominent scholars, like Imam Ibn Shihab al-Zuhri, to collect and record Hadith, marking the first organized, state-sponsored effort.

• The Battle of Badr was a major military engagement in early Islam (624 CE), long before systematic Hadith compilation efforts.
• While Medina was a center of learning, there isn't a specific "Council of Madina" associated with the *official* compilation of Hadith during the Umayyad era.
• The Hijra (migration to Medina in 622 CE) was the foundational event of the Islamic calendar, predating Hadith compilation efforts.