What is a reference to well-known person place or event literary work of art?

A reference to a well-known person, place, or event, literary work, or art is an allusion. Allusions are used to create a connection between the text and the reader's prior knowledge or experiences. They can be used to add humor, irony, or depth to a text. For example, in the novel Pride and Prejudice by Jane Austen, the character of Mr. Collins frequently makes allusions to the works of Virgil and Horace, which shows off his education and social status.