The paradox in Greece is that the 1st of May was officially celebrated by the dictatorship of Metaxa (1936-1940).
Also another grotesque situation is that 1st May became no working day during the dictatorship of Papadopoulos (1967-1973). Until then it was a strike.
Generally most Athenians don’t go to the center for the traditional march. It is considered a day off.
Speech of the dictator Ioannis Metaxas during the 1st May.