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patriarch, in Christian churches

(Encyclopedia)patriarch, in Christian churches, title of certain exalted bishops, implying authority over a number of other bishops. There were originally three patriarchates: the West, held by the bishop of Rome (...

sundial

(Encyclopedia)sundial, instrument that indicates the time of day by the shadow, cast on a surface marked to show hours or fractions of hours, of an object on which the sun's rays fall. Although any object whose sha...

Assurbanipal

(Encyclopedia)Assurbanipal äˈsho͝or– [key], d. 626? b.c., king of ancient Assyria (669–633 b.c.), son and successor of Esar-Haddon. The last of the great kings of Assyria, he drove Taharka out of Egypt and f...

Balkh

(Encyclopedia)Balkh bälkh [key], town, N Afghanistan, on a dried-up tributary of the Amu Darya River. One of the world's oldest cities, it is the legendary birthplace of the prophet Zoroaster. Because it was locat...

buttress

(Encyclopedia)CE5 Types of buttresses buttress, mass of masonry built against a wall to strengthen it. It is especially necessary when a vault or an arch places a heavy load or thrust on one part of a wall. In t...

Bronze Age

(Encyclopedia)Bronze Age, period in the development of technology when metals were first used regularly in the manufacture of tools and weapons. Pure copper and bronze, an alloy of copper and tin, were used indiscr...

week

(Encyclopedia)week, period of time shorter than the month, commonly seven days. The ancient Egyptians used a 10-day period, as did the French under the short-lived French Revolutionary calendar. In many regions a f...

Elam

(Encyclopedia)Elam ēˈləm [key], ancient country of Asia, N of the Persian Gulf and E of the Tigris, now in W Iran. A civilization seems to have been established there very early, probably in the late 4th millenn...

Sumerian and Babylonian art

(Encyclopedia)Sumerian and Babylonian art, works of art and architecture created by the Sumerian and Babylonian peoples of ancient Mesopotamia, civilizations which had an artistic tradition of remarkable antiquity,...

Lawrence, T. E.

(Encyclopedia)Lawrence, T. E. (Thomas Edward Lawrence), 1888–1935, British adventurer, soldier, and scholar, known as Lawrence of Arabia. While a student at Oxford he went on a walking tour of Syria and in 1911 j...