Answer:
The labor movement in America lived one of its worst days on May 4, 1886. Workers were participating in a protest in Haymarket Square in Chicago, Illinois, when one of the workers hurt a police officer with a bomb.
Then, a fight started. The consequence of that riot was that 8 people died and some workers were convicted. That incident is known as the Haymarket Riot.
The workers were protesting against the violence of the Chicago Police Department during a strike the previous day.
One of the consequences of this incident was that American citizens started to associate the term strike with violence, affecting the labor movement perception in the country.
Step-by-step explanation: