139 historical is not such as of a historiographer. For a
historical > [writing historical or epic works] such as > [like that] historiographer > chronicler, historian
140 historiographer discourses of affairs orderly, as they were
orderly > in sequence
141 done, accounting as well the times as the actions, but a poet
well > [much] times > dates
142 thrusts into the middest, even where it most concerns him,
middest > middle [of the story; cf. in medias res (Horace, Ars Poetica 148-9)]
143 and there, recoursing to the things forepassed, and divining
recoursing > returning forepassed > [which have already happened]