The answer is will because it is helping combine the sentence together.
studying the historical context helps you understand what happened during that period time.
hope i helped :)
Within The Tempest it is demonstrated that contact with native populations is rarely an even exchange; the native people are usually exploited in some way. This is demonstrated by the way that the "invaders" in the form of those who are shipwrecked at the beginning of the play attempt to change the islanders, little suspecting that one of them is the usurped Duke of Milan - now in the form of the wizard/magician Prospero.
To some extent it could also be argued that Prospero himself has already changed the nature of the island by being there. He has introduced magic, captures the monster Caliban and lies to his own daughter (allbeit it to protect her).
