Nepal, May 2 -- On May Day-also known as International Workers' Day-we pay tribute to the achievements and sacrifices of labour-labour out of which "came villages/and the towns that grew cities," as the Black socialist poet Langston Hughes tells us. And to the extent that "events are the real dialectics of history"-to use the Italian Marxist revolutionary Antonio Gramsci's words-May Day emerged from a crucial concatenation of historical events, propelled significantly by the international socialist movement, as a day of unity and solidarity with workers, and, by extension, with the exploited and the oppressed even on a global scale.

It is not for nothing that this May Day, several organisations, collectives, and groups across the world h...