The notable event that transformed the landscape of civil rights legislation in the United States in the 1960s was the Civil Rights Act of 1964. This landmark legislation prohibited discrimination based on race, color, religion, sex, or national origin. It addressed issues such as school desegregation, workplace discrimination, and equal access to public accommodations, representing a significant step toward social justice. The Act was passed in the wake of widespread protests and activism, and it provided a legal framework for challenging systemic racism and inequality, making it a key achievement of the civil rights movement.