The revelation of the Qur’an was not an isolated event in time. It was a constant stream of verses descending to Muhammad PBUH throughout the 23 years of his prophethood in Makkah and Madinah. The Prophet PBUH appointed numerous Companions of his to serve as scribes, writing down the latest verses as soon as they were revealed. Mu’awiya ibn Abu Sufyan and Zaid bin Thabit were among the scribes who had this duty.