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<span> musical styles such as gospel, jump blues, jazz, boogie woogie, and rhythm and blues, along with country music.</span>
<span>the reason why Truman put limits on MacArthur was : d. he was unhappy that MacArthur moved north of the 38th parallel
When MacArthur did this, it created a conflict with north korea. Truman worried that MacArthur's move will potentially caused China and Russia to join forces and attacked united states</span>
