A lot of people think of their birthday as a special day, a day made just for them, and they totally trip out when they meet someone who was born on the same day.But if you've ever wondered how rare the day of your birth actually is consult this chart created by Matt Stiles of The Daily Viz and you'll see- if you were born in the summer your day isn't that rare, born in January and you're a rare breed indeed.Matt created this chart based on data gathered from The New York Times, and Lane Harrison gave it...