The major movement aimed at eradicating child labor in the United States was the Child Labor Reform Movement, which gained momentum in the late 19th and early 20th centuries. Activists, including social reformers and labor unions, campaigned against the exploitation of children in factories and mines, where they worked long hours under hazardous conditions for minimal pay. Public awareness was raised through photographs and reports, garnering widespread support for legislation. The movement led to significant reforms, including child labor laws and the establishment of mandatory schooling, ultimately resulting in a decline in child labor practices across the nation.