May 1st, 1886, Chicago, USA.
Historic workers' strike. Thousands of workers took to the streets demanding better working conditions and the eight-hour workday.
Days later, while Haymarket Riot a bomb exploded, killing police agents and citizens.
Some labor leaders were arrested and executed in a trial considered unjust.
Besides May 1st is the workers' day in many countries, that is not the case of the U.S., the country where that happened.






