May 1, also called May Day, or Labour Day, is a public holiday, associated to the start of spring, and the celebration of the International Workers’ Day or Labour Day.
May Day was an ancient pagan festival celebrating spring and the rebirth taking place in nature. The Romans honoured Maia and Flora, the goddesses of flowers, fertility and springtime, from April 28 to May 3. After the Christianisation of Europe, the pagan holidays either were transformed into secular celebrations, as with May Day, or they kept their religious character and were replaced by new Christian holidays, such as Christmas, Easter, or All Saints’ Day
May 1 was considered the first day of summer in many European pagan cultures – while was the first day of Spring was February 1- and the summer solstice on June 25 (now June 21) was Midsummer.
In 1955, Pope Pius XII designated May 1 as a feast day of St. Joseph the Worker.