St Joseph the Worker Feast Day: To foster deep devotion to Saint Joseph among Catholics, and in response to the “May Day” celebrations for workers sponsored by Communists, Pope Pius XII instituted the feast of Saint Joseph the Worker in 1955. This feast extends the long relationship between Joseph and the cause of workers in both Catholic faith and devotion. Beginning in the Book of Genesis, the dignity of human work has long been celebrated as a participation in the creative work of God. By work, humankind both fulfills the command found in Genesis to care for the earth (Gn 2:15) and to be productive in their labors. Saint Joseph, the carpenter and foster father of Jesus, is but one example of the holiness of human labor.
Jesus, too, was a carpenter. He learned the trade from Saint Joseph and spent his early adult years working side-by-side in Joseph’s carpentry shop before leaving to pursue his ministry as preacher and healer. In his encyclical Laborem Exercens, Pope John Paul II stated: “the Church considers it her task always to call attention to the dignity and rights of those who work, to condemn situations in which that dignity and those rights are violated, and to help to guide [social] changes so as to ensure authentic progress by man and society.”
Saint Joseph is held up as a model of such work. Pius XII emphasized this when he said, “The spirit flows to you and to all men from the heart of the God-man, Savior of the world, but certainly, no worker was ever more completely and profoundly penetrated by it than the foster father of Jesus, who lived with Him in closest intimacy and community of family life and work.”
International Workers' Day, also known as Labour Day in some countries, and often referred to as May Day, is a celebration of labourers and the working classes that is promoted by the international labour movement which occurs every year on May Day (1 May), an ancient European spring festival.
The date was chosen by a pan-national organization of socialist and communist political parties to commemorate the Haymarket affair, which occurred in Chicago on 4 May 1886.The 1904 Sixth Conference of the Second International, called on "all Social Democratic Party organisations and trade unions of all countries to demonstrate energetically on the First of May for the legal establishment of the 8-hour day, for the class demands of the proletariat, and for universal peace."
The first of May is a national public holiday in many countries worldwide, in most cases as "Labour Day", "International Workers' Day" or some similar name - although some countries celebrate a Labour Day on other dates significant to them, such as the United States, which celebrates Labour Day on the first Monday of September.