{
 "id": "source/britannica-umar-i",
 "class": "source",
 "slug": "britannica-umar-i",
 "label": {
  "ar": "بريتانيكا — عمر الأول",
  "en": "Britannica — Umar I",
  "ur": "بریٹانیکا — عمر اول"
 },
 "summary": {
  "ar": "سيرة تسمي عمر خليفة مسلماً وتربط عهده بتنظيم التأريخ الهجري.",
  "en": "Biography explicitly identifying Umar as a Muslim caliph and linking his administration to Hijri dating.",
  "ur": "سوانح عمر کو صراحت سے مسلمان خلیفہ کہتی اور ان کی انتظامیہ کو ہجری سن سے جوڑتی ہے۔"
 },
 "stub": false,
 "wings": [],
 "regions": [],
 "periods": [],
 "tags": [],
 "aliases": [],
 "themes": [],
 "data": {
  "kind": "secondary",
  "type": "web",
  "title": "Umar I",
  "publisher": "Encyclopaedia Britannica",
  "language": "en",
  "URL": "https://www.britannica.com/biography/Umar-I",
  "open_access": true,
  "reliability_note": "Actual short biography read: explicitly second Muslim caliph, conversion and inauguration of Hijri calendar. No named author/update date invented. Different birth/conversion approximations do not silently replace existing maker dates; not proof of personal membership in a later sect.",
  "status": {
   "review": "published",
   "completeness": 2,
   "generated_by": "Copilot SDK in VS Code"
  },
  "provenance": {
   "generated_by": "Copilot SDK in VS Code",
   "model": "unknown",
   "run": "inventions-p3-b88",
   "source": "Actual biography read6November2026; individual Muslim evidence and administrative contribution."
  }
 },
 "prose": {},
 "degree": 0,
 "contemporaries": [],
 "updated": "2026-11-06",
 "connections": [],
 "related": [],
 "license": {
  "prose": "CC BY-SA 4.0",
  "data": "CC0 1.0"
 }
}