At its national convention in Chicago, held in 1984, the Federation of Organized Trades and Labor Unions, proclaimed that "eight hours shall constitute a legal day's labor from and after May 1, 1886.
On May 1st, 1886 , more than 300.000 workers in 13.000 businesses across the Unites States walked off their jobs in the "first May Day Celebration in History".
This is why we celebrate today.
Even though, May Day is an official holiday in 66 countries and unofficially celebrated in many more, rarely is it recognized in the United States where it all began.
Is it not ironic?