Final answer:
The civil rights milestones of the 1960s mentioned in the options are explained, and the exception is highlighted: the Civil Rights Act passed in 1964.
Step-by-step explanation:
The civil rights milestones of the 1960s mentioned in the options are:
- Nine Black teenagers fought to attend a segregated school in Little Rock, Arkansas
- Freedom Riders attempted to desegregate interstate bus travel
- James Meredith registered as a law student at the University of Mississippi
The Civil Rights Act was passed by Congress and signed into law, making it the exception as it did not occur in the 1960s. This landmark legislation was enacted in 1964 which prohibits discrimination based on race, color, religion, sex, or national origin.
Learn more about civil rights milestones of the 1960s