Apr 8, 2026 · 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 typically form …

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 to other …

Rock - 1960s, British Invasion, Psychedelic: Whatever the commercial forces at play (and despite the continuing industry belief that this was pop music as transitory novelty), it became clear that the most …

Rock - Social Change, Cultural Evolution, Music Revolution: How, then, should rock’s contribution to music history be judged? One way to answer this is to trace rock’s influences on other musics. …

Rock - Pioneers, Genres, Legends: For lexicographers and legislators alike, the purpose of definition is to grasp a meaning, to hold it in place, so that people can use a word correctly—for example, to …

Apr 11, 2026 · Elvis Presley, the iconic singer and actor known as ‘The King of Rock and Roll,’ revolutionized popular music with his electrifying performances and enduring influence on …

Southern rock, popular music style combining blues jams and boogie licks with lyrics declaring fierce regional pride. Its aggressive, unpretentious sound helped revitalize American rock in the 1970s. …

Rock, or stone, is a hard material made up of one or more minerals. Rock makes up the outer layer of Earth, called the crust. The lower parts of this layer are solid rock, or…

4 days ago · 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 known as rock …

Mar 21, 2026 · Art rock is an eclectic branch of rock music that emerged in the late 1960s and flourished in the early to mid-1970s. The term is sometimes used interchangeably with ‘progressive rock.’ …