Ridda wars
Traditional completion of Abu Bakr’s consolidation of Arabia
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Original prompt & settings (JSON) ↗The date may be a calendar-boundary artifact: al-Tabari’s AH 11 section ends on 17 March, and no consulted source records an event on the 18th.
No event is recorded on that day
No consulted scholarly or primary source identifies a proclamation, treaty, final battle or “official recognition” of Arabian unity on 18 March 633.
The date looks like an artifact of the calendar. The SUNY translation of al-Tabari assigns AH 11 the civil span 29 March 632 to 17 March 633, and 18 March is simply the day after that span closes.
What the sources do support
Modern educational scholarship supports only the broader statement that Abu Bakr’s campaigns had brought the entirety of Arabia under the first Islamic state’s control by 633. OpenStax gives no month and no day.
The translated al-Tabari volume likewise treats the subjection of Arabia as the cumulative result of the Ridda campaigns rather than a single-day constitutional act.
And 633 may still be early
Encyclopaedia Iranica places the defeat and death of Musaylima — central to the traditional Ridda narrative — in May or June 633, months after the supposed completion date, and warns that early conquest accounts are contradictory and precise dates elusive.
“United” also covers very different outcomes: conquest, coerced tribute, negotiated agreements, and the incorporation of groups never subject to Muhammad.
The translated al-Tabari volume describes rebellions against Muslim domination, and modern historians also identify political and fiscal disputes rather than religious apostasy in every case.
Sources
Researched 23 Aug 2026 4 sources 2 audit passes, 1 issue open Date disputed
How this was checked
Researched from the web into a fact sheet, rewritten from that sheet, then audited against it by a different model. How the pipeline works →
Date disputed. Sources disagree; the research places it at ~0633.
What the sources leave uncertain
- The exact date 18 March appears to coincide suspiciously with the first day after the translated al-Tabari volume’s converted span for AH 11 ends on 17 March. No evidence was found for a discrete event on that next day.
- OpenStax says only “by 633”; it supplies no month or day.
- Encyclopaedia Iranica places a key Ridda event—the defeat of Musaylima—in May–June 633, demonstrating that not all scholarly reconstructions end the campaigns by 18 March.
- The source traditions for both the Ridda campaigns and the first Iraqi conquests are late, internally inconsistent and difficult to date precisely.