not+impregnable
81List of Middle-earth wars and battles — J. R. R. Tolkien s Middle earth fantasy writings include many wars and battles set in the lands of Aman, Beleriand, Númenor, and Middle earth. These are related in his various books such as The Hobbit and The Lord of the Rings, and The… …
82Second Stadtholderless Period — The Second Stadtholderless Period or Era ( nl. Tweede Stadhouderloze Tijdperk) is the designation in Dutch historiography of the period between the death of stadtholder William III on March 19 [This is the date from the Gregorian calendar that… …
83cryptology — cryptologist, n. cryptologic /krip tl oj ik/, cryptological, adj. /krip tol euh jee/, n. 1. cryptography. 2. the science and study of cryptanalysis and cryptography. [1635 45; < NL cryptologia. See CRYPTO , LOGY] * * * Introduction …
84Iran — /i ran , i rahn , uy ran /, n. a republic in SW Asia. 67,540,002; ab. 635,000 sq. mi. (1,644,650 sq. km). Cap.: Teheran. Formerly (until 1935), Persia. * * * Iran Introduction Iran Background: Known as Persia until 1935, Iran became an Islamic… …
85World War I — the war fought mainly in Europe and the Middle East, between the Central Powers and the Allies, beginning on July 28, 1914, and ending on November 11, 1918, with the collapse of the Central Powers. Abbr.: WWI Also called Great War, War of the… …
86Iran, ancient — Introduction also known as Persia historic region of southwestern Asia that is only roughly coterminous with modern Iran. The term Persia was used for centuries, chiefly in the West, to designate those regions where Persian language and… …
87military technology — Introduction range of weapons, equipment, structures, and vehicles used specifically for the purpose of fighting. It includes the knowledge required to construct such technology, to employ it in combat, and to repair and replenish it.… …
88technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
89Western architecture — Introduction history of Western architecture from prehistoric Mediterranean cultures to the present. The history of Western architecture is marked by a series of new solutions to structural problems. During the period from the… …
90Christianity — • An account is given of Christianity as a religion, describing its origin, its relation to other religions, its essential nature and chief characteristics, but not dealing with its doctrines in detail nor its history as a visible organization… …
