As you already know, every month throughout the year has either 30 or 31 days except the month of February.  Why is that? Well, you have to go back to the days of Roman Emperor Caesar Augustus to get your answer. During Augustus' predecessor Julius Caesar's days, February had 30 days in it and an month of July named after him. July had a total of 31 days and the following month of August, named after Augustus, had a total of only 29 days.

Once Augustus became the Emperor, he added two days to his month to match Julius' monthly total and ego. Those two added days came out of February's calendar which made February a 28 day month (except for Leap Year when it is 29 days long).

So in essence it was an ego battle between Caesar Augustus and Julius Caeser that led to February being shortchanged.  And as Broadcaster Paul Harvey used to say, "That's the rest of the story".  Now you know!