The z comes from the Latin izo ending, and is therefore sort of more correct in many words. That doesn't make America all correct, of course, as they tend to use the z on some where it hasn't the Latin roots to validate it, as opposed to the Brits who do the converse. I don't care, myself.
― Martin Skidmore (Martin Skidmore), Friday, 16 January 2004 18:04 (twenty-two years ago)