Daily History Challenge · No. 4 · Thursday 2 July 2026 · Chain

Puzzle No. 4: Chain

The anchor was Uthman's standardisation of the Quran (650 CE). Every challenger is listed below with its year.

The anchor

c. 650 CEUthman's standardisation of the Quran

Around 650 CE the third caliph, Uthman ibn Affan, ordered the production of an authoritative written text of the Quran to halt disputes over differing recitations that had emerged as Islam spread among peoples speaking different dialects. A committee led by Zayd ibn Thabit, who had collected revelations during the reign of Abu Bakr, compiled and edited an official codex (mushaf) in the dialect of the Quraysh. Uthman dispatched master copies to the principal garrison cities, including Mecca, Medina, Kufa, Basra and Damascus, and reportedly ordered variant manuscripts destroyed to preserve uniformity. The resulting 'Uthmanic codex' became the basis for the consonantal text of the Quran used by Muslims ever since, an extraordinary act of early textual standardisation. By fixing the scripture in a single recension, Uthman gave the rapidly expanding and increasingly diverse Muslim community a shared and stable sacred text, reinforcing religious unity and providing the foundation for the later development of Quranic scholarship, Arabic grammar and Islamic law. Surviving early manuscripts such as the Birmingham and Sanaa fragments illuminate this formative period.

Read the full story · See the world in 650 CE