** Christchurch Castle, a 12th century ruin in the town

** Matilda in The Castle of Otranto – She is determined to give up Theodore, the love of her life, for her cousin ’ s sake.

** Theodore in The Castle of Otranto – he is witty, and successfully challenges the tyrant, saves the virginal maid without expectations

** Manfred in The Castle of Otranto – unjustly accuses Theodore of murdering Conrad.

** Bianca in The Castle of Otranto – a gossip, helps characters get valuable news, provides comic relief

** Diego and Jaquez in The Castle of Otranto – they appear to talk about random things, and argue foolishly with each other in order to lighten the air of the novel.

** Father Jerome in The Castle of Otranto – Jerome, though not evil, is certainly weak as he gives up his son when he is born and leaves his lover.

** Mines of Titan ( 1988, Louis Castle & Brett Sperry )

** ZorkQuest: Assault on Egreth Castle ( 1988, Elizabeth Langosy )

** Zork Quest: Assault on Egreth Castle ( 1988, Infocom, interactive computer comic book )

** The United States Post Office Department ( later renamed the United States Postal Service ) begins the 3rd regular airmail service in the world ( between New York City, Philadelphia and Washington, DC ), the 1st being from Allahabad to Naini Junction in India on the 18th February 1911 and the 2nd being from London to Windsor Castle on the 22nd June 1911.

** A fire breaks out in the Bannerman's Castle in the Hudson River ; most of the roof collapses and crashes down to the lower levels.

** Jayne Ann Krentz, née Castle ( Amanda Quick ), American novelist

** Elizabeth II describes this year as an annus horribilis ( horrible year ), due to various scandals damaging the image of the Royal Family, as well as the Windsor Castle fire.

** International Women's Year is launched in Britain by Princess Alexandra and Barbara Castle.

** Takeshi's Castle first aired on TBS.

** After 44 years, Estonian flag is raised to the Pikk Hermann Castle tower.

** Bernard Freyberg, 1st Baron Freyberg is made deputy constable and lieutenant governor of Windsor Castle.

** Mary Bankes, a Royalist in the English Civil War, who defended Corfe Castle ( d. 1661 )

** U. S. officials announce that a hydrogen bomb test ( Castle Bravo ) has been conducted on Bikini Atoll in the Pacific Ocean.

** Castle Acre Priory, and

** Nijō Castle, a castle in Nakagyō-ku, Kyoto

** John Beaumont, 4th Baron Beaumont, Constable of Dover Castle ( d. 1396 )

** Bodiam Castle ( East Sussex, England )

** Eunectes murinus, the green anaconda, the largest species, is found east of the Andes in Colombia, Venezuela, the Guianas, Ecuador, Peru, Bolivia, Brazil and on the island of Trinidad.

** Eunectes notaeus, the yellow anaconda, a smaller species, is found in eastern Bolivia, southern Brazil, Paraguay and northeastern Argentina.

** Eunectes deschauenseei, the dark-spotted anaconda, is a rare species found in northeastern Brazil and coastal French Guiana.

** Eunectes beniensis, the Bolivian anaconda, the most recently defined species, is found in the Departments of Beni and Pando in Bolivia.

** Tarski's theorem: For every infinite set A, there is a bijective map between the sets A and A × A.

** The Cartesian product of any family of nonempty sets is nonempty.

** König's theorem: Colloquially, the sum of a sequence of cardinals is strictly less than the product of a sequence of larger cardinals.

** Hausdorff maximal principle: In any partially ordered set, every totally ordered subset is contained in a maximal totally ordered subset.

** For every non-empty set S there is a binary operation defined on S that makes it a group.

** Tychonoff's theorem stating that every product of compact topological spaces is compact.

** In the product topology, the closure of a product of subsets is equal to the product of the closures.

** If S is a set of sentences of first-order logic and B is a consistent subset of S, then B is included in a set that is maximal among consistent subsets of S. The special case where S is the set of all first-order sentences in a given signature is weaker, equivalent to the Boolean prime ideal theorem ; see the section " Weaker forms " below.

** Any union of countably many countable sets is itself countable.

** If the set A is infinite, then there exists an injection from the natural numbers N to A ( see Dedekind infinite ).

** Every infinite game in which is a Borel subset of Baire space is determined.

** The Vitali theorem on the existence of non-measurable sets which states that there is a subset of the real numbers that is not Lebesgue measurable.

** The Lebesgue measure of a countable disjoint union of measurable sets is equal to the sum of the measures of the individual sets.

** The Nielsen – Schreier theorem, that every subgroup of a free group is free.