The Cask of Amontillado Poe may have borrowed Montresor's family motto "Nemo me impune lacessit" from James Fenimore Cooper, who used the line in "The Last of the Mohicans" (1826). Poe wrote his tale, however, as a response to his personal rival Thomas Dunn English. Poe and English had several confrontations, usually revolving around literary caricatures of one another. Poe thought that one of English's writings went a bit too far, and successfully sued the other man's editors at "The New York Mirror" for libel in 1846. That year English published a revenge-based novel called "1844, or, The Power of the S.F." Its plot
The Last of the Mohicans opportunities to meet and talk with Native Americans: "occasionally some small party of the Oneidas, or other representatives of the Five Nations, had crossed his path in the valley of the Susquehanna River, or on the shores of Lake Ontario, where he served when a midshipman in the navy." He read what sources were available at the time—Heckewelder, Charlevoix, William Penn, Smith, Elliot, Colden, Lang, Lewis and Clark, and Mackenzie. By using the name Uncas for one of his characters, he seemed to confuse the two regional tribes: the Mohegan of Connecticut, of which Uncas had been a well-known sachem,