Terry Glavin writes on the significance of May Day (the full piece is here):
This is raw, unambiguous and unsophisticated language, but its moral clarity is the basis of progressive internationalism. It is universal in purpose and global in ambition, and it is the bedrock beneath the fight for free trade unions, the eight-hour day, safe working conditions and proper labour law. This isn't just the dusty antiquarian stuff of maudlin labour ballads. These are still life-and-death struggles in much of the world today.
Amen to that: internationalism universal in purpose.