In Shakespeare's day, much of the world was still being colonized by European merchants and settlers, and stories were coming back from the Americas, with myths about the Cannibals of the Caribbean, faraway Edens, and distant tropical Utopias. With the character Caliban (whose name is almost an anagram of Cannibal and also resembles "Cariban", the term then used for natives in the West Indies), Shakespeare may be offering an in-depth discussion into the morality of colonialism. Different views of this are found in the play, with examples including Gonzalo's Utopia, Prospero's enslavement of Caliban, and Caliban's subsequent resentment. Caliban is also shown as one of the most natural characters in the play, being very much in touch with the natural world (and modern audiences have come to view him as far nobler than his two Old World friends, Stephano and Trinculo, although the original intent of the author may have been different). There is evidence that Shakespeare drew on Montaigne's essay Of Cannibals—which discusses the values of societies insulated from European influences—while writing The Tempest.[30]
Beginning in about 1950, with the publication of Psychology of Colonization by Octave Mannoni, The Tempest was viewed more and more through the lens of postcolonial theory. This new way of looking at the text explored the effect of the coloniser (Prospero) on the colonised (Ariel and Caliban). Though Ariel is often overlooked in these debates in favour of the more intriguing Caliban, he is nonetheless an essential component of them.[31] The French writer Aimé Césaire, in his play Une Tempête sets The Tempest in Haiti, portraying Ariel as a mulatto who, unlike the more rebellious Caliban, feels that negotiation and partnership is the way to freedom from the colonisers. Fernandez Retamar sets his version of the play in Cuba, and portrays Ariel as a wealthy Cuban (in comparison to the lower-class Caliban) who also must choose between rebellion or negotiation.[32] Although scholars have suggested that his dialogue with Caliban in Act two, Scene one, contains hints of a future alliance between the two when Prospero leaves, Ariel is generally viewed by scholars as the good servant, in comparison with the conniving Caliban—a view which Shakespeare's audience may well have shared.[33][not in citation given (See discussion.)] Ariel is used by some postcolonial writers as a symbol of their efforts to overcome the effects of colonisation on their culture. For example, Michelle Cliff, a Jamaican author, has said that she tries to combine Caliban and Ariel within herself to create a way of writing that represents her culture better. Such use of Ariel in postcolonial thought is far from uncommon; the spirit is even the namesake of a scholarly journal covering post-colonial criticism.[31]