The ten year expansion ended in March of 2001 [the peak] and the end of recession beginning of expansion [the trough] occurred in November 2001. Start with the link in my last post.There is no reason to sit here and belabor the point. The National Bureau of Economic Research (NBER) is THE authority on recessions. Arguing against what they say is like arguing with Einstein that he cannot spell his own name because you know the 'i before e except after c' rule and he got it wrong in his own name twice.
While it may be intriguing (not to mention humorous) to debate the man using the point above as ammunition, he and the rest of the world will peg you as foolish for for challenging the very authority that defines the subject... Albert on the spelling of Einstein and NBER on calling recessions.