 Certain passages in "Coriolanus", first published in 1623, are alleged to refer to the circulation of the blood, a theory known to Bacon through his friendship with William Harvey, but not made public until after Shakespeare's death in 1616.They also argue that Bacon has been praised for his poetic style, even in his prose works.Opponents of this view argue that Shakespeare's erudition was greatly exaggerated by Victorian enthusiasts, and that the works display the typical knowledge of a man with a grammar school education of the time.