I think what he actually wanted was http://www.wolframalpha.com/input/?i=May+14+1984+plus+9999+days&asynchronous=false&equal=Submit http://www.wolframalpha.com/

I think what he actually wanted was http://www.wolframalpha.com/input/?i=May+14+1984+plus+9999+days&asynchronous=false&equal=Submit http://www.wolframalpha.com/input/?i=May+14+1984+plus+9999+d... Which would be 10000 days inclusive of May 14. (Wolfram says in this case that it was Sept. 29, which is correct. (ie Mark is celebrating the wrong day. But kudos to him for being aware of it in the first place. I celebrated mine July 23.))