Republic of El Salvador (modern)
Who & why: after decades of shifting flag designs following the federation's collapse, El Salvador formally readopts the blue-white-blue tricolor with a version of the old federal arms on 17 May 1912, cementing the design still flown today. The 20th century brings a series of military-dominated governments and deep land inequality, culminating in the 1979–1992 civil war between the U.S.-backed military government and FMLN guerrillas; the 1992 Chapultepec Peace Accords end the fighting without any change to the flag itself.
What it represents: the blue-white-blue triband adopted by the Legislative Assembly on 17 May 1912 and first hoisted at the Campo de Marte on 15 September 1912, replacing the 1865 flag because that design looked too much like the US flag. The Law of National Symbols (Decree 115) followed on 14 September 1972, with the flag confirmed on 27 September; FOTW dates the coat of arms to 27 December 1972, not 1912.
Wikipedia: 17 May 1912 adopted; hoisted 15 September 1912; replaced the 1865 flag because it resembled the US flag; 14 September 1972 Law of National Symbols. FOTW: 17 May 1912; Decree 115 of 14 September 1972, flag confirmed 27 September; arms adopted 27 December 1972.
- Flag of El Salvador — Wikipedia compiled
- El Salvador — Flags of the World (CRW Flags) compiled
Not established: The arms date is 1972, not 1912.