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Ladoga, Lake

(Encyclopedia)Ladoga, Lake läˈdōgə, Rus. läˈdəgə [key], Finnish Laatokka, Rus. Ladozhskoye Ozero, c.7,000 sq mi (18,100 sq km), NW European Russia, in Karelia, NE of St. Petersburg. The largest lake in Euro...

Leakey, Richard Erskine Frere

(Encyclopedia)Leakey, Richard Erskine Frere frĭr [key], 1944–2022, Kenyan paleoanthropologist, conservationist, and ...

Lycopodiophyta

(Encyclopedia)Lycopodiophyta līˌkōpōˌdēŏfˈətə [key], division of the plant kingdom consisting of the organisms commonly called club mosses and quillworts. As in other vascular plants, the sporophyte, or s...

National Archives

(Encyclopedia)National Archives, official depository for records of the U.S. federal government, established in 1934 by an act of Congress. Although displeasure concerning the method of keeping national records was...

musical instruments

(Encyclopedia)musical instruments are classified in various ways, but the system devised in 1914 by Kurt Sachs and E. M. von Hornbostel has been accorded recognition by both anthropologists and musicologists becaus...

foraminiferan

(Encyclopedia)foraminiferan fərămˌənĭfˈərən [key], common name for members of the class Foraminifera, large, shelled ameboid protozoans belonging to the phylum Sarcodina. Most foraminiferan shells are calca...

Isaiah

(Encyclopedia)Isaiah īzāˈyə, īsāˈ– [key], prophetic book of the Bible. It is a collection of prophecies from a 300-year period attributed to Isaiah, who may have been a priest. Some scholars argue that a l...

Egyptian language

(Encyclopedia)Egyptian language, extinct language of ancient Egypt, a member of the Afroasiatic family of languages (see Afroasiatic languages). The development of ancient Egyptian is usually divided into four peri...

dark energy

(Encyclopedia)dark energy, repulsive force that opposes the self-attraction of matter (see gravitation) and causes the expansion of the universe to accelerate. The search for dark energy was triggered by the discov...

Cyrene

(Encyclopedia)Cyrene sīrēˈnē [key], ancient city near the northern coast of Africa, in Cyrenaica (now E Libya). It was a Greek colony founded (c.630 b.c.) by Aristoteles of Thera, who became king of Cyrene as B...