People like to find random patterns to make time seem more significant. September 9th, 2009, is important solely for the fact that it's date is written as 9/9/09. From there, people connect random facts to try and prove the date is special. The numbers aren't special until people want them to be special, then they do their best to make them special.
Really, 9/9/09, 9/9/99, 8/8/08, 8/8/88, 1/23/45. They are numbers. Behold their numeric glory! Bask in their numerity! For without them, people would be dateless! Which, as all earthly people can attest, would be a travesty of numeric proportions!