anniversary

My blog is fast approaching one year in age. The question arises then, what day do I consider the "birthday"?
My first post was April 24, 2006. That would be easy enough, however the blog is named for the Pentecost, 50 Days After (the Resurrection). So should I wait a little while after the first post and declare the birthday to be Pentecost?
I am putting it to a vote since I cannot decide. Please vote April 24 or Pentecost in the comments.

-- Contra