I think you're confusing the whole "there was no year 0, so the millenium starts in 2001" business with decades. Decades start on the 0. If you were to say "t

I think you're confusing the whole "there was no year 0, so the millenium starts in 2001" business with decades. Decades start on the 0. If you were to say "the 200th decade CE", that'd be a different story :)