Hey, it's Pi Day! So celebrate one of the mathematical mysteries with friends/family/loved ones/your Math teacher.
Pi Day is a special day in the lives of many a nerd.
Pi, Greek letter (Ï€), is the symbol for the ratio of the circumference of a circle to its diameter.
The first Pi Day celebration was held at the San Francisco Exploratorium in 1988,
Pi -- the number 3.14¦ -- gets its own special day on 3/14, or March 14.