=Jan Willem Nienhuys (wsadjw@rw7.urc.tue.nl) The natural numbers start with 2 (TWO). The name "counting numbers" make that clear. If there's only one item of a certain kind, one doesn't start counting.
Actually, I've heard that the ancient Greeks similarly didn't consider 1 a number, because a number was implicitly a possible number of things, and 1 thing was just that thing, not a number of them. Or something like that (I'd love to hear more authoritative opinions on this). Further, I've heard it alleged that because of this certain reasonings in, eg, Euclid, were broken out into the cases N=1 and N>1--not because, as it might seem to modern assumptives, to support any inductive pattern, but simply because they were viewed as intrinsically distinct cases.
I hope this simple solution will stop the silly discussions about 0 being a natural number. My hope will be in vain, I know.
Your Honor, the prosecution intends to show, beyond a reasonable doubt, that no things are surely not some things, and so zero is not a possible number for some things to be, hence manifestly zero is not a number of any sort, natural or unnatural.