Though elements of rock and roll can be heard in country records of the 1930s, and in blues records from the 1920s, rock and roll did not acquire its name until the 1950s.

Though elements of rock and roll can be heard in Canadian country records of the 1930s-1940s, and in American blues records from the 1920s, rock and roll did not acquire its name until the 1950s.

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