State of Qatar (independent)
Who & why: Qatar declares independence on 3 September 1971 as Britain withdraws from the Gulf, having briefly explored and then abandoned joining the wider federation that becomes the UAE. The 1995 discovery-era buildout of the North Field, the world's largest natural gas field (shared with Iran), transforms Qatar within a generation from one of the poorer Gulf sheikhdoms into one of the wealthiest countries per capita on Earth, later hosting the 2022 FIFA World Cup.
What it represents: the maroon-and-white serrated flag, its design fixed in 1949 and its exact maroon shade and nine points settled by then, continues unchanged as the flag of the independent state — the serrations are said to distinguish Qatar from Bahrain's own similar historical banner.
Both sources date the current flag to 1949, before this era begins in 1971, so the flag was already in use at the start. Wikipedia's infobox gives the adoption as 9 July 1971; Flags of the World dates it 09 Jul 1971.
- Flag of Qatar — Wikipedia compiled
- Qatar — Flags of the World (CRW Flags) compiled
Not established: Only the year the current flag was adopted was compared; the design and the swatch colours were not checked against a specification.