Rock | Definition, History, Artists, Songs, & Facts | Britannica
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 …
Rock | Definition, Characteristics, Formation, Cycle, Classification ...
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 …
Standing Rock protests | Summary, Violence, & Outcome - Britannica
Standing Rock protests, campaign undertaken in North Dakota in 2016 and 2017 to halt the construction of the Dakota Access pipeline.
Rock and roll | History, Songs, Artists, & Facts | Britannica
Nov 21, 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 …
Dome of the Rock | History, Architecture, & Significance | Britannica
The Dome of the Rock is a shrine in Jerusalem built in the late 7th century CE that is the oldest extant Islamic monument in the world, believed to be the site of Muhammad’s ascent to …
Alternative rock | Definition, Bands, Songs, & Facts | Britannica
Oct 9, 2025 · Alternative rock, pop music style, built on distorted guitars and rooted in generational discontent, that dominated and changed rock between 1991 and 1996. It burst …
Rock - Pioneers, Genres, Legends | Britannica
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 …
Igneous rock | Characteristics, Examples, Formation, & Types
Oct 31, 2025 · Igneous rocks are formed from the solidification of magma, which is a hot (600 to 1,300 °C, or 1,100 to 2,400 °F) molten or partially molten rock material. Earth is composed …
Rock - 1960s, British Invasion, Psychedelic | Britannica
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 …
Sedimentary rock | Definition, Formation, Examples,
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.