The Rightly Guided Caliphs and Early Islamic Expansion
This domain tests the four caliphs of 632–661, the ridda wars, the first conquests, and the administrative and religious decisions that shaped later Islam.
The four caliphs
- Abu Bakr (632–634): ridda wars, dispatch of Usama's expedition, initial collection of the Qur'an under Zayd ibn Thabit.
- Umar (634–644): Yarmuk (636), Qadisiyya (636), surrender of Jerusalem (637/638), conquest of Egypt; the diwan, garrison cities such as Kufa, Basra and Fustat, and the Hijri calendar.
- Uthman (644–656): naval expansion and Cyprus; distribution of canonical Qur'an copies; killed in Medina.
- Ali (656–661): capital moved to Kufa; Battle of the Camel (656), Siffin (657), arbitration dispute, Kharijite split; killed at Kufa.
Expansion
Motives were not single-cause: tribal momentum, Byzantine-Sasanian exhaustion after the war of 602–628, treaty arrangements with local elites, and garrison settlement. Conversion was gradual and was not enforced by conquest.
Worked example
Question: Why is 656–661 called the First Fitna? Reasoning: it is defined by Muslim-on-Muslim conflict over the caliphate - the Camel, Siffin and Nahrawan - not by external war; its outcome produced the Umayyad takeover. A good answer names the battles and the arbitration dispute rather than saying vaguely that Muslims fought.
Traps
- Confusing the Qur'an's collection under Abu Bakr with its standardization under Uthman.
- Placing Jerusalem's surrender and the Dome of the Rock in the same period; they are different centuries.
- Treating the Kharijites as supporters of Ali; they emerged by opposing his arbitration.