Flag of the Abbasid Caliphate (Black Standard)

{
  "g": "h,caliphate",
  "ns": "caliphates",
  "name": "Abbasid Caliphate",
  "now": "iraq",
  "years": "750–1258",
  "id": "abbasid",
  "index": "c/iraq:750",
  "title": "Flag of the Abbasid Caliphate (Black Standard)",
  "ratio": "2:3",
  "colors": [
    {
      "color": "black",
      "hex": "#000000",
      "cmyk": "0/0/0/100",
      "note": "The official colour of the Abbasid Caliphate (750–1517 CE)."
    }
  ],
  "desc": "- The Abbasid Caliphate (750–1258) adopted the Black Standard (al-Raya), referencing the turban of the Prophet. Baghdad was its great capital\n - **Construction:** a plain black field. Black was the dynastic colour of the Abbasids, in opposition to the Umayyad white",
  "flag": "caliphates/abbasid.svg",
  "countryData": {
    "name": "Abbasid Caliphate",
    "officialName": "Abbasid Caliphate",
    "un": "none"
  },
  "cs": "caliphates/abbasid.cs.svg",
  "trivia": "- The Abbasid Caliphate (750–1258) was the longest-lasting Islamic caliphate\n - Ruled from Baghdad, which became one of the world's greatest cities\n - Known for patronage of science, medicine, mathematics, and philosophy",
  "article": "caliphates/abbasid.md",
  "_name": "Abbasid Caliphate",
  "_namespace": "caliphates",
  "_namePart": "abbasid"
}