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Campbell, Glen Travis

(Encyclopedia)Campbell, Glen Travis, 1936–2017, American country singer-songwriter, b. Billstown, Ark. A performing musician by age 14, he moved in 1960 to Los Angeles, where he worked in rock and roll bands and ...

earth, in geology and astronomy

(Encyclopedia)CE5 A. Cross section of the earth, showing its shells B. Detailed cross section of the crust and upper mantle: The lithosphere consists of the hard rock in the crust and upper mantle, lying above t...

disco

(Encyclopedia)disco, style of popular music that flourished during the 1970s. Originating in the United States, it evolved mainly from funk, soul, and salsa and became popular worldwide. Characterized by a heavy, t...

King, B. B.

(Encyclopedia)King, B. B., 1925–2015, African-American blues singer and guitarist, b. near Indianola, Miss., as Riley B. King. He grew up poor in the Mississippi Delta region, began playing the guitar at 12, was ...

Keokuk, chief of the Sac and Fox

(Encyclopedia)Keokuk kēˈəkək [key], c.1780–1848, Native American, chief of the Sac and Fox, b. near present-day Rock Island, Ill. When Black Hawk supported the British in the War of 1812, Keokuk refused to jo...

Stoppard, Tom

(Encyclopedia)Stoppard, Tom, 1937–, English playwright, b. Zlín, Czechoslovakia (now in the Czech Republic), as Tomas Straussler. During his childhood he and his family moved to Singapore, later (1946) settling ...

petrology

(Encyclopedia)petrology, branch of geology specifically concerned with the origin, composition, structure, and properties of rocks, primarily igneous and metamorphic, and secondarily sedimentary. It includes petrog...

metamorphism

(Encyclopedia)metamorphism, in geology, process of change in the structure, texture, or composition of rocks caused by agents of heat, deforming pressure, shearing stress, hot, chemically active fluids, or a combin...

Turner, Tina

(Encyclopedia) Turner, Tina 1939- , African American R&B and rock singer, b. Brownsville, Tn., as Anna Mae Bullock. Turner had a turbulent childhood, with her par...