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York, Edmund of Langley, duke of

(Encyclopedia)York, Edmund of Langley, duke of, 1341–1402, fifth son of Edward III of England. He was made (1362) earl of Cambridge, served on expeditions to Spain and France, and married (1372) Isabel, daughter ...

Bedford, John of Lancaster, duke of

(Encyclopedia)Bedford, John of Lancaster, duke of, 1389–1435, English nobleman; third son of Henry IV of England and brother of Henry V. At the death (1422) of his brother and succession of his 9-month-old nephew...

Saint John of Jerusalem, Knights of

(Encyclopedia)Saint John of Jerusalem, Knights of: see Knights Hospitalers. ...

Protocols of the Elders of Zion

(Encyclopedia)Protocols of the Elders of Zion, a fraudulent document that reported the alleged proceedings of a conference of Jews in the late 19th cent., at which they discussed plans to overthrow Christianity thr...

Aymer of Valence, earl of Pembroke

(Encyclopedia)Aymer of Valence, earl of Pembroke: see Pembroke, Aymer de Valence, earl of. ...

chord, in music

(Encyclopedia)chord, in music, two or more simultaneously sounding pitches. In tonal music the fundamental chord is called the triad. It consists of three pitches, two a perfect fifth apart and a third pitch a majo...

ode

(Encyclopedia)ode, elaborate and stately lyric poem of some length. The ode dates back to the Greek choral songs that were sung and danced at public events and celebrations. The Greek odes of Pindar, which were mod...

Thierry, Augustin

(Encyclopedia)Thierry, Augustin ōgüstăNˈ tyĕrēˈ [key], 1795–1856, French historian. His vivid literary style, romantic treatment of events, and use of contemporary documents helped to create interest in hi...

drill, tool

(Encyclopedia)drill, tool used to create a hole, usually in some hard substance, by its rotary or hammering action. Many different tools make up the drill family. The awl is a pointed instrument used for piercing s...

probability

(Encyclopedia)probability, in mathematics, assignment of a number as a measure of the “chance” that a given event will occur. There are certain important restrictions on such a probability measure. In any exper...