Prospero; ''This thing of darkness, I call my own'' This shows the colonizer's attitude of looking down on the colonized people.
This is how some of the colonisers would hold behaved because they wanted control. He has full control over everything on the island. But such notion is failed because Caliban does not learn his Prosper language, even at the end of the play. He, as a sense of superiority, takes Caliban as half man.
Again at the terminal of the drama in Act 5 Scene 1 once more marks of colonisation are in trend. This binary opposition shows how Prospero as a colonizer creates essences about the colonized people. But putting him under slavery and undermining him as a monster, we can take Prospero as a representative of the Europeans who usurped the land of native Americans and enslaved them.
This Island is mine, by Sycorax, my mother. Colonialism was a subject easily related to by Shakespeare's contemporary audience; with James on the throne the British Empire was beginning to thrive and would soon become the largest in not only the 17th Century world, but one of the largest in history.