See the Chicago Haymarket riots occurred on this day in 1886, and ever since then commie trade-unionists, including the entire soviet union (who made it one of their major holidays), have claimed it as their own.
Fuck You Commies.
This day is Bealtaine, a joyous celebration of life, fertility, and birth.
Yes folks, May Day is all about the nookie. Hell one of the traditional celebrations of may day involves dancing around a giant symbolic cock, wrapping it with ribbons, drinking heavily, and then going off and screwing like mad (funny how those things coincide isn't it).
Personally, I'd much rather celebrate a good rogering and a swelling belly than memorialize a bunch of commies starting a riot and then killing millions over the next 120 years.
So I say:
FUCK THE COMMIES, TAKE BACK MAY DAY
Update: Damn, I think I've had about as much celebratin as one man can stand... or sit, or lie down for that matter!