I started this blog on March 14, to coincide with Pi Day (3/14), and just celebrated my 3rd anniversary back in March. Today, however is another very special anniversary.

The first post on this blog was made on March 14th, 2005 at 7:03 AM. This entry is being posted on May 5, 2008, at 12:13 AM (28.7 seconds after the minute started), which is 3 years 51 days 17 hours 10 minutes 28.7 seconds later, or 3.14159265 years after the first entry! That's right, Grey Matters is now approximately Pi years old!

If this has you curious about how old you are in Pi, try the Pi Days site. Since Pi never repeats, you may also be able to find your birthday in Pi, as well!

To help celebrate this rather unusual occasion, I'd like to share some pi links with you:

The Joy of Pi: This is the site for the book of the same name, and has recently been redesigned. There's plenty of Pi goodness here!

Pi Day: An Infinite Number of Ways to Celebrate: OK, it's not Pi Day, but a Pi-versary is just as good a reason to celebrate, so feel free to steal some ideas from Pi Day!

Surprising Uses of the Pythagorean Theorem: Yes, you're probably very familiar with this equation, or at least believe you are. Why am I linking to it in a Pi article? Click the link, and learn about a new side of an old friend.

Mathematical Pi (to the tune of 'American Pie'): What's a celebration without a song? If you don't know the tune, you can listen to it, or even watch the music video!

Don't forget all the other Pi links I've posted over the years. Thank you for sharing this Pi-versary with me!