sentences:  Polio survivors were often in the forefront of the disability rights movement that emerged in the United States during the 1970s, and pushed legislation such as the Rehabilitation Act of 1973 which protected qualified individuals from discrimination based on their disability, and the Americans with Disabilities Act of 1990.Other political movements led by polio survivors include the Independent Living and Universal design movements of the 1960s and 1970s.Polio survivors are one of the largest disabled groups in the world.