400

Today marks 400 days for me. What else is interesting about 400? From Wikipedia...

-- 400 is the mathematical square of 20
-- A circle is divided into 400 grads, which is equal to 360 degrees and 2π radians
-- An HTTP status code for a bad request
-- The Four Hundred (sometimes The Four Hundred Club) - a phrase meaning the wealthiest, most famous, or most powerful social group, leading to the generation of such lists as the Forbes 400 - I've got a while yet before I make that one!
-- The 400, later the Twin Cities 400, a Chicago and North Western Railway passenger train that traveled 400 miles between Minneapolis/St. Paul and Chicago, Illinois in 400 minutes

What is special about today for you?