Leaping Around

Yesterday I mentioned to Emily that this was a Leap Year and we have an extra day in February.  Her immediate comment was 'what?....does everyone leap around on that day?'  I love that kids are so literal.  So to explain more clearly I did some research.  Did you know that Leap Years are needed to keep our calendar in alignment with the Earth's revolutions around the sun?  It takes the Earth approximately 365.242199 days – or 365 days, 5 hours, 48 minutes, and 46 seconds (a tropical year) – to circle once around the Sun.  And did you know Julius Caesar first introduced Leap Years in the Roman empire over 2000 years ago?