AppleScript: repeat with every element from start to finish

I'm trying to repeat a list but I would like to repeat the last item in the list to the most recent rather than to another.

How can I do this knowing that it will be done in the wrong order:

            repeat with each of 2 to the number of elements of creationDate
end of repeating

What I'm trying to do is to return the article number of the last article that contains the text "it does not matter"