Rock music roll, which originated in the United States during the late 1940s and early 1950s, and quickly spread to much of the rest of the world. Its immediate origins lay in a melding of various black musical genres of the time, including rhythm and blues and gospel music, with country and western. In 1951, Cleveland, Ohio disc jockey Alan Freed began playing rhythm and blues music (then termed "race music") for a multi-racial audience, and is credited with first using the phrase "rock and roll" to describe the music. Debate surrounds which record should be considered the first rock and roll
The History of Rock and Roll Rolling Stone magazine not only released a book with this phrase ("The Rolling Stone Illustrated History of Rock & Roll"), but also had an early-1980s weekly radio series with some similarities to the classic 1978 special ("Rolling Stone's Continuous History of Rock & Roll"). The award-winning 1978 version of the show opened with a quick reverse "Time Sweep", featuring clips from selected songs from the 1970s backwards to the 1950s. It covered the 1950s, 1960s, and 1970s, and closed with a "A Top Ten of Rock & Roll" followed by the "Ending Time Sweep": The "time sweep" is a 53-minute