Let's TalkZapaday, Weesperstraat 61, Amsterdam, Netherlands.
The Social democratic Party in Stockholm on Labour Day or Workers' day
International Workers' Day, also known as May Day, is a celebration of the international labour movement and left-wing movements.
It commonly sees organized street demonstrations and marches by working people and their labour unions throughout most of the world.
May 1 is a national holiday in more than 80 countries. It is also celebrated unofficially in many other countries.