Noting that this is the 50th anniversary of the event described in the article (25 de Abril 1974):
https://en.wikipedia.org/wiki/Carnation_Revolution
Oh, and if you'd like to hear the song iself:
https://en.wikipedia.org/wiki/Carnation_Revolution
Oh, and if you'd like to hear the song iself:
Yet to celebrate their 50th anniversaries:
24 Jul 1974 Greece (Türkiye in Cyprus; still a frozen conflict)
20 Nov 1975 Spain (Official death of Franco)