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 …

First, that rock is so broad a musical category that in practice people organize their tastes around more focused genre labels: the young Presley was a rockabilly, the Beatles a pop group, …

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 …

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 …

Rock Island, city, seat (1833) of Rock Island county, northwestern Illinois, U.S. It lies on the Mississippi River (bridged to Iowa) at the mouth of the Rock River and opposite the island for …

ROCK meaning: 1 : to move (someone or something) back and forth or from side to side; 2 : to cause (something) to shake violently sometimes used figuratively

Oct 2, 2025 · Rock - Structure, Texture, Composition: Physical properties of rocks are of interest and utility in many fields of work, including geology, petrophysics, geophysics, materials …

Oct 8, 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 River, nonnavigable stream in the north-central United States that originates north of Horicon Marsh, near Brandon in Fond du Lac county, eastern Wisconsin, and flows in a …

In Britain, as in the rest of Europe, rock and roll had an immediate youth appeal—each country soon had its own Elvis Presley—but it made little impact on national music media, as …