This is the VOA Special English Health Report.

Twenty years ago this week, President George H. W. Bush signed a civil rights law that Americans call the ADA.
GEORGE H. W. BUSH: "I now lift this pen to sign this Americans with [Disabilities] Act and say let the shameful wall of exclusion finally come tumbling down."

Congress passed the law to bar discrimination against people with physical or mental disabilities. The ADA governs employers, transportation systems and public places, including hotels and other businesses.