 Other sources have been suggested, but are less certain.Shakespeare might also have drawn on Livy's "Ab Urbe condita", as translated by Philemon Holland, and possibly a digest of Livy by Lucius Annaeus Florus; both of these were commonly used texts in Elizabethan schools.Machiavelli's "Discourses on Livy" were available in manuscript translations, and could also have been used by Shakespeare.