Oct 2, 2025 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and …

Rock is a form of popular music that emerged in the 1950s and that by the end of the 20th century was the world’s dominant form of popular music. It originated in the United States and spread …

Oct 11, 2025 · Rock and roll, style of popular music that originated in the United States in the mid-1950s and that evolved by the mid-1960s into the more encompassing international style …

Rock history can thus be organized around both the sound of cities (Philadelphia and Detroit, New York City and San Francisco, Liverpool and Manchester) and the spread of youth cults (rock …

Nov 6, 2025 · Sedimentary rock, rock formed at or near Earth’s surface by the accumulation and lithification of sediment or by the precipitation from solution at normal surface temperatures.

Sep 28, 2025 · Rock Hudson, American actor noted for his good looks and movie roles during the 1950s and ’60s, including Magnificent Obsession, Giant, and Pillow Talk, and for the TV series …

Two Treatises of Government, major statement of the political philosophy of the English philosopher John Locke, published in 1689. The first treatise is a refutation of the theory of the …

Sep 23, 2025 · Mia Zapata was the lead vocalist of the Seattle-based punk rock group the Gits. Born in Chicago in 1965 and raised in Louisville, Kentucky, she fell in with a group of …

Oct 24, 2025 · John Locke, English philosopher whose works lie at the foundation of modern philosophical empiricism and political liberalism. He was an inspirer of both the European …

The Beatles’ success suggested that it was possible to enjoy the commercial, mass-cultural power of rock and roll while remaining an artist. The immediate consequence was folk rock. Folk …