PUMA anniversary coming up? Anybody know when PUMA ground zero actually was?

I'm curious as to when ground zero was for PUMA's? Was it around May 30th of 2008, or did it happen prior to that date? I did some google research but was not able to find anything definitive.

If anybody wants to give their opinion please do so in the comments section. There are about three or four versions of PUMA ground zero out there. When contributing an answer, please consider the possibility that there may be other versions out there as well that could be just as valid.

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