San Diego free speech fight
The San Diego free speech fight in San Diego, California, in 1912 was one of the most famous class conflicts over the free speech rights of labor unions. Starting out as one of several direct actions known as free speech fights carried out across North America by the Industrial Workers of the World, the catalyst of the San Diego free speech fight was the passing of Ordinance No.
Source: Wikipedia — San Diego free speech fight (CC BY-SA 4.0)