Leap Years were solidified by the year 1582, and since then we’ve had to reset our calendar to match the sun. What would we do without it?

Could I handle being a few days older? What if you’re born on the 29th? What if winter didn’t start the same day every year in the Northern Hemisphere? Would we know when to have the Olympics? Would it effect springing forward or falling back? Does the whole world acknowledge Leap Year, and if so, how in the heck did we get the whole world to agree on anything?

How does Leap Year effect you, and does it really matter?