Labor day and organized labor
May 1st commemorates, as it is well known, the workers strike at McCormick Harvester factory in Chicago in defense of the eight hour journey (such a radical idea!), which led to police repression and the deaths of four workers. It also commemorates the events of May 4th the so-called Haymarket affair, in which a bomb killed a policeman (and after more police repression other four workers were killed and several wounded) and eight anarchists leaders were framed and sentenced to death. In dark blue are the countries that commemorate labor day on May 1st.