Columbia Encyclopedia

(Encyclopedia) John VIII, d. 882, pope (872–82), a Roman; successor of Adrian II. John strenuously opposed the activities of St. Ignatius of Constantinople in Bulgaria. When Ignatius died, John recognized Photius ...

(Encyclopedia) Dennett, Tyler dĕnˈĭt [key], 1883–1949, American historian and educator, b. Spencer, Wis. Dennett was lecturer in American history at Johns Hopkins (1923–24) and at Columbia (1927–28), chief ...

(Encyclopedia) Agnes, Saint, 4th cent., virgin martyr. A noble Roman girl martyred at the age of 13 after rejecting a well-born suitor. She was included in the Depositio Martyrum of 354. On her feast day lambs are b...

(Encyclopedia) Burnham, Daniel Hudson bûrˈnəm [key], 1846–1912, American architect and city planner b. Henderson, N.Y. He was trained in architects' offices in Chicago. In that city he established (1873) a part...

(Encyclopedia) salsify, common name for a tall, narrow-leaved biennial (Tragopogon porrifolius) of the family Asteraceae (aster family), native to S Europe but now naturalized and sometimes growing as a weed in Nort...

(Encyclopedia) Donne, John dŭn, dŏn [key], 1572–1631, English poet and divine. He is considered the greatest of the metaphysical poets. All of Donne's verse—his love sonnets and his religious and philosophic...

(Encyclopedia) radical, in mathematics, symbol () placed over a number or expression, called the radicand, to indicate a root of the radicand. When used without a sign or index number, as in 4, it designates the pos...

(Encyclopedia) John, Saint, one of the Twelve Apostles, traditional author of the fourth Gospel, three letters, and the Book of Revelation (see John, Gospel according to Saint; John, letters; Revelation); it is high...

(Encyclopedia) Cantacuzene, John: see John VI, Byzantine emperor. ...

(Encyclopedia) Sobieski, John: see John III, king of Poland. ...