This document summarizes major historical changes that have impacted special education. It outlines key US laws including the Rehabilitation Act of 1973, Education for All Handicapped Children Act of 1975, amendments in 1986 extending rights to preschoolers, Individuals with Disabilities Education Act of 1990, No Child Left Behind Act of 2001, amendments to IDEA in 1997 and 2004, and the Individuals with Disabilities Education Improvement Act of 2004. Each law expanded rights and protections for students with disabilities and their parents, increased access to accommodations and resources, and changed how special education is implemented.