I believe I do have a timeline of events that you might find illuminating.
He explains that Aristotle was wrong to claim that heavy things fall faster than lighter things. He uses a short poem to remind them of this:
Whether they’re large or whether they’re small,
Has no effect on the rate which things fall.
But whether you choose to accept this or not-le,
Depends on your faith in that fool, Aristotle.
He asks one of his students, Spencer, who it was that proved Aristotle wrong in 1592. Spencer, who had not been listening, incorrectly guesses Plato. The answer was Galileo.