<P> Rock and roll ( often written as rock & roll or rock ' n ' roll ) is a genre of popular music that originated and evolved in the United States during the late 1940s and early 1950s , from African American musical styles such as gospel , jump blues , jazz , boogie woogie , and rhythm and blues , along with country music . While elements of rock and roll can be heard in blues records from the 1920s and in country records of the 1930s , the genre did not acquire its name until 1954 . </P>
<P> Rock and roll ( often written as rock & roll or rock ' n ' roll ) is a genre of popular music that originated and evolved in the United States during the late 1940s and early 1950s , from African American musical styles such as gospel , jump blues , jazz , boogie woogie , and rhythm and blues , along with country music . While elements of rock and roll can be heard in blues records from the 1920s and in country records of the 1930s , the genre did not acquire its name until 1954 . </P>
rock and roll which first emerged in the 1950 's is a union of which two styles
rock and roll which first emerged in the 1950 's is a union of which two styles
blues records from the 1920s and in country records of the 1930s
blues records from the 1920s and in country records of the 1930s