Term for the intense strikes and violent labor confrontations of 1886?

The term for the intense strikes and violent labor confrontations of 1886 is the "Great Upheaval" or "Labor Uprising." This period included significant events like the Haymarket Affair in Chicago, which highlighted the struggle for workers' rights and the fight for an eight-hour workday. These confrontations underscored the tensions between labor movements and industrial management during the era of rapid industrialization in the United States.