Just a footnote.  As an Englishman it's not "UK English" and "American English" it is English, and American English.  ;¬)

Most American English seems to be an attempt to simplify spellings and turn them into a more phonetic vairiant.  For instance...theater for theatre, color for colour, and (the point in case) gray for grey.  I could never work out how you changed lift into elevator, flat into apartment, and trousers into pants though. :biggrin:

The liver is evil - It must be punished.