And May Day in U.S. was supplanted by Law Day ("to celebrate the rule of law") but it didn't take off because it wasn't a public holiday.
Ya can't make this up any better.
As a US-ian I can tell you this propaganda works. I grew up not knowing shit about May Day (that's like flowers in a basket, right?) or Labor Day and I routinely confused Labor Day and Veterans Day. This coming from a solidly LIB-slash-Non-Political household of teacher parents.
my brainwormed parents told me that May Day was some sexually deviant holiday ?? No idea where that came from
May Day is when everyone dances around a maypole and then does butt stuff