May 1st marks International Workers' Day, a date that pays tribute to the courage and determination of the McCormick factory workers in the United States, who fought for their labour rights in 1886. In Argentina, the celebration of this day dates back to 1890, when for the first time the struggles and rights won by workers were commemorated.

At that time, working hours were very long, reaching up to 18 hours a day. The McCormick factory workers in Chicago demanded a reduction of the working day to 8 hours, a demand that met with fierce opposition from the employers at the time.

The struggle of these workers culminated in a series of demonstrations that led to the tragic "Haymarket bombing", an event that marked a turning point in the history of the labour movement. While their names, as the "Chicago Martyrs", have been etched in the collective memory, their legacy transcends the borders of the United States and has inspired generations of workers around the world.

In 1919, the first conference of the International Labour Organisation (ILO), which had just been formed, approved the universal adoption of the 8-hour day and the 48-hour week.

In Argentina, on 28 April 1930, then President Hipólito Yrigoyen formally instituted the date as Labour Day throughout the nation, recognizing the importance of honouring those who contribute to the country's development and prosperity.

Today, May Day remains an occasion to reflect on the challenges facing workers around the world. On Workers' Day, we honour and salute the Argentines who work every day to rebuild a fairer and freer country.