In reply to Doug:
> But its not just French that uses accents, or letters we don't use in English. I don't know for sure, but I strongly suspect English is one of the few European languages without them, I can't think of another although that's maybe a reflection of my limited knowledge
Accents (or, to verge on the pedantic, diacritics) do exist in English, although usually in words borrowed from other languages eg paté, saké and maté (neither of which latter two has the diacritic in its original language).
Italian doesn't do accents in the sense of diacritics which change the pronunciation of the letters to which they are applied. You do see diacritics which look like acute and grave accents in Italian, particularly in printed texts, but they are usually there indicate when a word is stressed in a different way to normal.
The wiki article on diacritics
https://en.wikipedia.org/wiki/Diacritic is quite a good read (if you like that sort of thing).