Да здравствует первое мая (Long live the first of May), ca. 1919-1930
Duke University Rare Book, Manuscript, and Special Collections Library, Durham, N.C.
Happy May Day! The first day of May is known as International Workers' Day in many (most?) countries around the world. In was a particularly big deal in the Communist states that comprised the Eastern Bloc, in which countries the government would hold elaborate official May Day celebrations in every town and city, but it's an important and widely observed holiday in pretty much any county with a strong labor movement--explaining why it's pretty much ignored in this country.
Here in the United States, May Day largely passes unnoticed, except of course by me:
I don't think I'll ever get tired of that.