Final answer:
The Americans with Disabilities Act (ADA) of 1990 provided equal opportunity for disabled Americans and required necessary accommodations in the workplace, focusing on increased diversity and sensitivity to diversity.
Step-by-step explanation:
The legislation that brought renewed focus on diversity and increased sensitivity to diversity was the Americans with Disabilities Act (ADA) of 1990. President George H. W. Bush signed the ADA into law, which provided equal opportunity for disabled Americans in both public and private sectors. It required employers to provide reasonable accommodations, ensuring that individuals with disabilities had equal chances to work and participate in society. This encompassed making facilities accessible, adjusting work schedules, providing necessary equipment, and more. The ADA was a significant step beyond the earlier Civil Rights Act of 1964, which did not include protections based on disability.