Republic of Panama (full sovereignty)
Who & why: the 1977 Torrijos–Carter Treaties, signed by General Omar Torrijos and U.S. President Jimmy Carter, set a phased schedule for handing the Panama Canal and the Canal Zone back to Panama. At noon on 31 December 1999, the United States formally transfers full control of the canal to Panama, ending 96 years of American presence on the isthmus and giving Panama complete, unqualified sovereignty over its own territory for the first time since 1903.
What it represents: the flag first made on 1 November 1903 by María de la Ossa de Amador from a sketch by Manuel Encarnación Amador, in a first version used from 3 November 1903 to 1904; the current design was in use before the oath of 20 December 1903 and was ratified by Law 64 of 1904. Law 48 of 25 March 1925 adopted it (FOTW calls it Law 4), Law 34 of 15 December 1949 officially described it, and Decree 337 of 22 December 2017 set the official colours.
Wikipedia: made 1 November 1903 by María de la Ossa de Amador from Manuel E. Amador's sketch; Law 64 of 1904; Law 48 of 25 March 1925; Law 34 of 15 December 1949; Decree 337 of 22 December 2017. FOTW: first hoisted and baptised 20 December 1903; Law 64 of 1904; Law 4 of 1925; designer disputed.
- Flag of Panama — Wikipedia compiled
- Panama — Flags of the World (CRW Flags) compiled
Not established: The 1925 law number and the designer differ between sources.