In 1886, workers took to the streets across the United States to protest poor and unfair working conditions. International Workers' Day came about after the Haymarket massacre in Chicago, where workers striking for a shorter work week were met with lethal repression.
Since then, most of the world marks May 1 as a day for workers to take to the streets to mark gains and also make demands. From Melbourne to Havana, London to Santiago, Kinshasa to Los Angeles, protesters will be marching in force.
Follow teleSUR for our coverage of the International Workers Day.