Romania (post-Communist republic)
Who & why: a popular uprising beginning in Timișoara on 16 December 1989 topples Nicolae Ceaușescu within days; he and his wife Elena are tried and executed on Christmas Day. A new constitution is adopted by referendum in December 1991, and Romania joins NATO in 2004 and the EU in 2007.
What it represents: the Communist state's coat of arms is cut out of the tricolor's center within hours of the revolution starting — protesters carried flags with a literal hole in them — leaving the plain blue-yellow-red field, legally readopted on 27 December 1989 and unchanged since.
Wikipedia says protesters in Timișoara on 20 December 1989 waved flags with the Communist arms cut out, and that on 27 December 1989 the National Salvation Front restored the simple tricolour of 1867. FOTW (Heimer) gives 27 December 1989 for the re-establishment of the plain tricolour without naming the instrument, says the flag with a hole became a symbol of the revolution, and gives Article 12 of the Constitution (21 November 1991) and Flag Law 75/1994.
- Romania — Flags of the World (CRW Flags) compiled
- Flag of Romania — Wikipedia compiled
Not established: The instrument of 27 December 1989 is not named by either source.