On May 1, 1886, workers across the United States walked off their jobs in support of the eight-hour day. In Chicago, the event resulted in what is known as the Haymarket Affair. When the three day period was over, several police and workers lay dead and 8 Anarchists were facing murder charges. Eight innocent men were hanged. This action, eventually, resulted in the declaration of May Day as a Global day of working class protest.