Although he was a young poet, John Keats was very indulged in history. In his poems, Keats used allusion as one of his main literary elements. An allusion is a reference to something else without writing directly about it. Keats’ allusions were mainly historical figures or popular literature. In “To one who has been long in city pent,” Keats makes an allusion to Paradise Lost, which was a trending piece of literature at the time. The audience that Keats was writing to most likely had read Paradise Lost, thus they knew what Keats was trying to say. Keats’ writings also reference the Iliad and the Odyssey, both of which were popular during the Romanticism period. As a writer, Keats’ main goal is to get his message through to his audience. In