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Literary Calavera - A Mexican tradition on Day of the Dead
 
Initially known as panteones, these verses had their origin in the 19th century as mocking epitaph and a way of expressing ideas or feelings that in other occasions might be difficult to express. For this reason they were often censored or destroyed, since they also often served as a means to express political satire. The first calaveras were published in 1879, in the newspaper El Socialista, of Guadalajara.