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  1. 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 …

  2. Rock | Definition, Characteristics, Formation, Cycle, Classification ...

    Nov 25, 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 …

  3. 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 …

  4. Dwayne Johnson | Biography, Wrestling, Films, & Facts | Britannica

    6 days ago · The turn led to increased popularity. The Rock engaged in a series of high-profile feuds with the biggest stars in the WWF and captured the first of several world championship …

  5. Metamorphic rock | Definition, Formation, & Facts | Britannica

    Oct 18, 2025 · Metamorphism can occur either when a rock moves from one position to another along a single geotherm or when the geotherm itself changes form. The former can take place …

  6. Rock - Social Change, Cultural Evolution, Music Revolution

    Rock remains the most democratic of mass media—the only one in which voices from the margins of society can still be heard out loud. Yet, at the beginning of the 21st century, rock and the …

  7. 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 …

  8. 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 …

  9. Chris Rock | Biography, Movies, TV Shows, & Facts | Britannica

    Oct 24, 2025 · Chris Rock (born February 7, 1966, Georgetown, South Carolina, U.S.) is an American comedian whose popular stand-up routine, which often addressed racial matters, led …

  10. Heavy metal | Bands, Songs, Music, Rock, & Facts | Britannica

    Nov 1, 2025 · Rock music is a form of popular music that emerged in the 1950s and can be defined as “a form of music with a strong beat”—it is difficult to be much more precise. It is …