Cinco de Mayo!

It's the fifth of May: Cinco de Mayo  National No Homework day!  I really haven't taken a big part in this since I got into high school.  I didn't know it was National No Homework day - that may explain the minimal amount of homework I have today.  In Japan it's also a holiday called Children's Day.  They don't have school today.  Why can't we have that holiday?  Mrs. Toma gave us candy to celebrate it.   Why doesn't the US have a children's day?  We have Mother's Day and Father's Day, why no Children's Day?