03.03.09 was a Square Root Day.

When every special thing has a day to celebrate it, why not square roots? Any number multiplied by itself produces a square and the numbers themselves are called square roots. On March 3rd, 2009, the square root of the year turned out to be the month/day. The next time one can celebrate a Happy Square Root day will be on April 4, 2016 when again the square root of 2016 will be the month/day. It is easy to produce √ - called a radical symbol officially using the ALT+521 on your keyboard. The Square Root Day began being celebrated from September 9, 1981 and was first started by a high school teacher in Redwood City, California. According to Scientific American’s 60-Second Science Blog, Square Root Day comes only nine times in a century.

If you thought this was the only one mathematics geniuses were celebrating, think again. They have hailed Happy Pi day on 3/14and Mole Day on 10/23 at 6:02 am. Mole Day celebrates a basic unit of measurement in Chemistry (6.02 X 10^23) that is also called Avogadro’s number. Incidentally March 14, Pi Day is also Einstein’s birthday so nerds the world over will have another reason to celebrate the day. It is not only the roots that are being celebrated. Even the powers have reason to be celebrated. February 6, 2064 is one such day when 2^6 will be celebrated. There is also the Fibonacci Day on January 12, 2035.