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 …

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 …

Read More talus caves In cave: Sea caves, eolian caves, rock shelters, and talus caves …caves are openings formed between boulders piled up on mountain slopes. Most of them are very …

Sep 23, 2025 · Mia Zapata was the lead vocalist of the Seattle-based punk rock group the Gits. Born in Chicago in 1965 and raised in Louisville, Kentucky, she fell in with a group of …

rock, In geology, a naturally occurring and coherent aggregate of mineral s. The three major classes of rock— igneous, sedimentary, and metamorphic —are based on the processes that …

In 1957 Little Rock was the scene of a pivotal point in the civil rights movement. That year a showdown developed between the state and federal governments over the right of nine …

Since emerging in the 1950s, rock has been the dominant form of popular music. It originated in the United States and spread to other English-speaking countries and across…

Oct 11, 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 …

Jul 24, 2025 · Rock - Alternative, Punk, Grunge: The 1970s, in short, was the decade in which a pattern of rock formats and functions was settled.

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 …