May 4 - The Day that Changed the World

Labor History in 2:00 · May 4, 2026 · 1m

On this day in Labor History the year was 1886. That evening a worker’s rally in Chicago Illinois became known as the Haymarket Tragedy. On May 1, workers from across the city and country had held massive rallies for the eight-hour day. Two days later,the police had fired into a crowd of workers on strike outside of the McCormick Reaper plant in the Chicago neighborhood of Pilsen.