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Fifty years ago this month, as the nation still mourned John F. Kennedy, the 1960s began to truly take shape.

On Feb. 9, The Beatles made their highly anticipated U.S. television debut on The Ed Sullivan Show. The next day, the U.S. House passed the Civil Rights Act of 1964, sending it to the Senate where it would face intense opposition.

USA TODAY Network looks back at how two defining forces of the 1960s -- the fight for civil rights and the pop culture revolution -- would manifest themselves on consecutive days in February 1964 and what their enduring impact would be on a changing America.