A ritual is a set of actions, performed mainly for their symbolic value. It may be prescribed by the traditions of a community, including a religious community. The term usually refers to actions which are stylized, excluding actions which are arbitrarily chosen by the performers.
The field of ritual studies has seen a number of conflicting definitions of the term. One given by Kyriakidis (2007) is that a ritual is an outsider’s or “etic" category for a set activity (or set of actions) which to the outsider seems irrational, non-contiguous, or illogical. The term can be used also by the insider or "emic" performer as an acknowledgement that this activity can be seen as such by the uninitiated onlooker.
In psychology, the term ritual is sometimes used in a technical sense for a repetitive behavior systematically used by a person to neutralize or prevent anxiety; it is a symptom of obsessive–compulsive disorder. -(Wiki)
International Workers’ Day is the commemoration of the 1886 Haymarket affair in Chicago. The police were trying to disperse a public assembly during a general strike for the eight-hour workday, when an unidentified person threw a bomb at them. The police reacted by firing on the workers, killing four demonstrators. “Reliable witnesses testified that all the pistol flashes came from the center of the street, where the police were standing, and none from the crowd. Moreover, initial newspaper reports made no mention of firing by civilians. A telegraph pole at the scene was filled with bullet holes, all coming from the direction of the police.”
Subsequently, the May Day Riots of 1894 occurred. In 1904, the International Socialist Conference meeting in Amsterdam called on “all Social DemocraticParty organizations and trade unions of all countries to demonstrate energetically on May First for the legal establishment of the 8-hour day, for the class demands of the proletariat, and for universal peace.” The congress made it “mandatory upon the proletarian organizations of all countries to stop work on May 1, wherever it is possible without injury to the workers.”
In the United States and Canada, however, the official holiday for workers is Labor Day in September. This day was promoted by the Central Labor Union and the Knights of Labor, who organized the first parade in New York City. After the Haymarket Massacre, US President Grover Cleveland feared that commemorating Labor Day on May 1 could become an opportunity to commemorate the affair. Thus he moved in 1887 to support the Labor Day that the Knights supported.
In 1955, the Catholic Church dedicated May 1 to “Saint Joseph The Worker”. The Catholic Church considers Saint Joseph the patron saint of (among others) workers and craftsmen.
Far-right governments have traditionally sought to repress the message behind International Workers’ Day, with fascist governments in Portugal, Italy, Germany and Spain abolishing the workers’ holiday. 1 May in the US is celebrated as Loyalty Day.