From Britannica Library Reference Center:
Although widely considered a synonym for rap music, the term hip-hop refers to a complex culture comprising four elements: deejaying, or “turntabling”; rapping, also known as “MCing” or “rhyming”; graffiti painting, also known as “graf” or “writing”; and “B-boying,” which encompasses hip-hop dance, style, and attitude, along with the sort of virile body language that philosopher Cornel West described as “postural semantics.” Hip-hop originated in the predominantly African American economically depressed South Bronx section of New York City in the late 1970s. As the hip-hop movement began at society’s margins, its origins are shrouded in myth, enigma, and obfuscation.