The modern U.S. homeschooling movement emerged in the 1970s, sparked by educators like John Holt and Raymond Moore. Holt, a former teacher, criticized traditional schools for stifling creativity and promoted “unschooling,” a child-led approach detailed in his book How Children Learn. Moore’s Better Late Than Early argued for delayed formal education to foster natural development. Their ideas, amplified by growing parental dissatisfaction with rigid school systems, inspired a grassroots movement, leading to millions embracing homeschooling as a flexible, personalized alternative by the 21st century.