A prominent advocate for social justice and education in the United States was Jane Addams. She co-founded Hull House in Chicago, which provided crucial services for immigrants and the poor, addressing issues of education, labor rights, and women's suffrage. Addams believed in the importance of community and social reform, using her platform to advocate for peace and improved living conditions. Her work laid the groundwork for modern social work and highlighted the need for systemic change in addressing societal issues.