Wikipedia:Did you know/Multiple articles
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|Learning DYK system|
L1: A hook introducing more than one article is an exception to the hook length rule. If your hook introduces more than one article, you can do a basic calculation by subtracting the number of characters in the bolded character string for each additional new article beyond the first. If having done that the hook length is still 200 characters or less, it is probably an acceptable length. If it is over 200 characters after the subtractions, it may still be considered eligible if the hook is reasonably compact and readable, but such hooks will be considered on a case-by-case basis.
L2: Text duplicated in more than one article in a multi-article hook only counts toward the 1500 character minimum for one of them.