May Day is an American holiday.  Who knew?

https://www.rbth.com/lifestyle/330314-may-first-in-russia     –May 1 became International Labor Day after the tragedy at Haymarket Square in Chicago, Illinois, USA. In early May 1886, demonstrations were held in Chicago and other US cities demanding an eight-hour working day. It might seem a no-brainer today, but in the late 19th century many tycoons did not believe that workers had the right to sleep. read more