But the approximate dates aren t exact and are actually contradicted in the text we re better off giving the context than misleading folks with the parentheticals The timeline is subject to the same issue it makes things look neat and tidy when they aren t And the sentence which you added about Pirenne is unsourced this is a FA everything is sourced You added it in before a sentence sourced to Mommsen s Petrarch s Conception of the Dark Ages but nothing in Mommsen s article discusses what you added at all