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During a labor rally in Chicago, a bomb explosion and gunfire led to the deaths of eight police officers and four members of the public.
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Labour movement
Economic and political movement seeking to advance workers
The labour movement is the collective organisation of working people to further their shared political and economic interests. It consists of the trade union or labour union movement, as well as political parties of labour. It can be considered an instance of class conflict.In…Source: Wikipedia (CC BY-SA)
Haymarket affair
1886 aftermath of a bombing in Chicago, US
The Haymarket affair, also known as the Haymarket massacre, the Haymarket riot, the Haymarket Square riot, or the Haymarket Incident, was the aftermath of a bombing that took place at a labor demonstration on May 4, 1886 at Haymarket Square in Chicago, Illinois. The rally began…Source: Wikipedia (CC BY-SA)