seven.

Did you hear about this one?

All these idiot people insisting on getting married today because it's a "lucky day" due to it being 07/07/2007.

Whoopty-fucking-doo, people.

Dude, don't they realize the Gregorian calendar is a recent--historically speaking, any way--calendar any way?

Like, if we were still on the Julian Calendar, today really wouldn't be today. (However, it might be Lemming-Like Idiot Bride Day, or something.)

And what about Auguste Comte and his suggestion that we make every 365th day a "Year Holiday" without an assigned day-of-the-week?

Or Russia, when January 31st, 1918 was immediately followed by February 14th?

Or the fact that we're basing all this "luckiness" crap on a solar calendar, any way?

What about lunar calendars?! Or those cultures that don't even have calendars (lucky bastards)?!

We won't even get into the whole controversy over the use of Common Era/Before Common Era terminology, because... well, if you're planning your life happiness around one fucking day, explaining all this history stuff is probably a moot point any way.