English wine cask units the mediæval French and Italian "botte") or pipe was half a tun, or 1008 pints. Tradition has it that George, Duke of Clarence, the brother of Edward IV of England, was drowned in a butt of malmsey on 18 February 1478. (However, Josephine Tey in "The Daughter of Time" suggests that "drowned in a butt of malmsey" means rather that George, Duke of Clarence, drank himself to death rather than literally drowning in a container of wine.) In Edgar Allan Poe's short story "The Cask of Amontillado", the narrator claims he has received "a pipe of what passes for Amontillado".
Asimov's Guide to Shakespeare for doing this. Within each category, the plays are arranged according to internal (historical) chronology, making allowance for the several not based on actual events. Asimov notes how much is real history, and describes who the historical people were, where applicable. He traces those characters who appear in more than one play, and provides maps to explain key geographical elements. Asimov's approach is not popular with some readers' prejudices: "Asimov's Guide to Shakespeare", vols I and II (1970), . Gramercy Books. Nearly 800 pages long plus an index, the work was originally published in two volumes; Greek, Roman and Italian