May 12, 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 …

Jun 14, 2025 · 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 …

Apr 17, 2025 · 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 …

Jun 11, 2025 · Plymouth Rock, first identified in 1741, became a symbol of freedom in 1774 when it was split by being dragged to Liberty Pole Square in pre-Revolutionary agitation. It now rests …

Plymouth Rock, granite slab upon which, according to tradition, the Pilgrim Fathers stepped first after disembarking from the Mayflower on December 26, 1620, at what became the colony of …

Jun 14, 2025 · 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 …

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 MacMillan …

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 …

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…

Jun 14, 2025 · 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 …