Which act made racial, religious, and sex discrimination by employers illegal in the United States?

The Civil Rights Act of 1964 is a landmark piece of legislation in the United States that made it illegal for employers to discriminate based on race, color, religion, sex, or national origin. This act was a major milestone in the civil rights movement and helped to pave the way for greater equality in the workplace by prohibiting discriminatory hiring practices, policies, or treatment. It established the Equal Employment Opportunity Commission (EEOC) to investigate complaints and enforce the law, thereby creating a formal structure to uphold and protect individuals' rights against discrimination.

In contrast, the other acts mentioned serve different purposes. The Fair Labor Standards Act primarily focuses on labor regulations such as minimum wage and overtime pay. The Equal Employment Opportunity Act, while related to the enforcement of anti-discrimination laws, is broader and does not specifically create the prohibitions that the Civil Rights Act of 1964 established. The Americans with Disabilities Act prohibits discrimination against individuals with disabilities in several areas, including employment, but it does not address racial, religious, or sex discrimination, which is specifically covered by the Civil Rights Act.