May Day on May 1 is an ancient northern hemisphere spring
festival and usually a public holiday; it is also a traditional spring
holiday in many cultures. Dances, singing, and cake are usually part of the
celebrations that the day includes.
In the late 19th century, May Day was chosen as the date for
International Workers' Day by the Socialists and Communists of the Second
International to commemorate the Haymarket affair in Chicago. International Workers'
Day may also be referred to as "May Day", but it is a different
celebration from the traditional May Day.
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