1 May, known as May Day, is an official holiday in 66 countries across the world honouring workers.
May Day originated as an ancient pagan celebration of spring, known as “Beltane" ("Lucky Fire" in Gaelic).
Some countries still recognize the original traditions of May Day and celebrate with festivities and various customs.
A main custom is the maypole dance, which originated as a fertility ritual and involves dancing around a pole with colourful streamers and ribbons.
The Brussels Times