Usman ibn Affan was the third caliph of Islam who ruled from 644-656 CE. He was known for his piety, generosity, and notable achievements including funding projects, expanding the Rashidun caliphate, and organizing the compilation of the Quran into a complete text. However, rebellion and dissent grew during the second half of his caliphate. Despite refusing to resign when demanded, rebels surrounded and eventually assassinated Usman when he was 84 years old while he was reciting the Quran.