 He might also have made use of Plutarch's original source, the "Roman Antiquities of Dionysius of Halicarnassus", as well as on his own grammar-school knowledge of Roman custom and law".Most scholars date "Coriolanus" to the period 1605–10, with 1608–09 being considered the most likely, although the available evidence does not permit great certainty.The earliest date for the play rests on the fact that Menenius's fable of the belly is derived from William Camden's "Remaines", published in 1605.