I'm guessing lots of folks celebrated Mother's Day.  But how many celebrated Buddha's Birthday (in the U.S.)?

3,462,186

oh yeah - and Christ was born on the 25th of December. I'm Buddhist, some Buddhists observe his birthday on Jan 1st, some on April 1st (April Fool!) and some around in May or June.

I dunno - only a Buddha can discern a Buddha.

I suggest you go out and celebrate tomorrow, appreciate that day with a great profound, know that a Buddha may have been born that day - may you know that Buddhist wisdom is in you, and in me.